| 1910. | 1911. | 1912. | 1913. | 1914. | 1915. | 1916. | 1917. | 1918. | 1919. | Ten-yr. av. | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| $ | $ | $ | $ | $ | $ | $ | $ | $ | $ | ||
| January | 23.90 | 23.30 | 25.80 | 24.10 | 25.70 | 26.70 | 25.10 | 31.90 | 40.50 | 48.70 | 29.57 |
| February | 26.20 | 23.80 | 27.70 | 24.10 | 26.40 | 27.20 | 25.00 | 34.40 | 40.80 | 49.40 | 30.50 |
| March | 25.60 | 24.00 | 27.00 | 23.60 | 26.50 | 26.90 | 24.30 | 37.70 | 42.70 | 46.70 | 30.50 |
| April | 25.70 | 23.80 | 27.80 | 23.30 | 27.00 | 27.20 | 24.40 | 41.20 | 42.40 | 48.00 | 31.08 |
| May | 25.30 | 24.20 | 27.80 | 23.50 | 26.70 | 27.80 | 24.60 | 43.60 | 42.20 | 47.10 | 31.28 |
| June | 24.90 | 24.10 | 26.90 | 23.10 | 26.50 | 25.90 | 24.40 | 38.30 | 42.90 | 46.60 | 30.36 |
| July | 24.40 | 24.00 | 25.80 | 23.00 | 24.20 | 25.90 | 24.00 | 40.00 | 40.00 | 46.80 | 29.81 |
| August | 23.50 | 24.30 | 25.40 | 23.50 | 26.00 | 25.70 | 24.60 | 41.90 | 37.50 | 48.10 | 30.05 |
| September | 23.20 | 23.90 | 25.40 | 25.70 | 26.00 | 24.70 | 26.00 | 37.00 | 38.90 | 48.10 | 29.89 |
| October | 22.20 | 24.60 | 25.50 | 25.30 | 25.60 | 24.70 | 26.80 | 36.30 | 37.00 | 46.10 | 29.41 |
| November | 22.80 | 24.80 | 24.50 | 25.20 | 25.20 | 24.90 | 30.50 | 38.00 | 38.00 | 47.00 | 30.09 |
| December | 22.80 | 25.40 | 24.50 | 25.00 | 24.80 | 24.30 | 31.40 | 41.50 | 38.40 | 47.10 | 30.52 |
| Yearly aver. | 24.11 | 24.08 | 26.07 | 24.10 | 25.88 | 25.99 | 25.92 | 38.48 | 40.11 | 47.47 | 30.22 |
| 1911. | 1912. | 1913. | 1914. | 1915. | 1916. | 1917. | 1918. | 1919. | 1920. | |
|---|---|---|---|---|---|---|---|---|---|---|
| $ | $ | $ | $ | $ | $ | $ | $ | $ | $ | |
| January | .278 | .281 | .284 | .292 | .287 | .283 | .340 | .431 | .549 | .613 |
| February | .241 | .290 | .276 | .274 | .279 | .276 | .335 | .437 | .496 | |
| March | .227 | .272 | .275 | .260 | .268 | .271 | .341 | .434 | .438 | |
| April | .226 | .261 | .276 | .249 | .258 | .276 | .335 | .407 | .476 | |
| May | .214 | .260 | .270 | .238 | .257 | .279 | .361 | .399 | .503 | |
| June | .203 | .248 | .255 | .228 | .248 | .265 | .350 | .386 | .491 | |
| July | .204 | .234 | .247 | .229 | .242 | .257 | .335 | .382 | .472 | |
| August | .217 | .237 | .249 | .237 | .242 | .261 | .340 | .397 | .482 | |
| September | .231 | .242 | .259 | .253 | .245 | .274 | .361 | .414 | .497 | |
| October | .238 | .256 | .275 | .260 | .253 | .290 | .389 | .472 | .515 | |
| November | .252 | .269 | .282 | .263 | .264 | .311 | .409 | .497 | .560 | |
| December | .274 | .288 | .292 | .284 | .276 | .344 | .419 | .527 | .600 |
| 1911. | 1912. | 1913. | 1914. | 1915. | 1916. | 1917. | 1918. | 1919. | 1920. | |
|---|---|---|---|---|---|---|---|---|---|---|
| $ | $ | $ | $ | $ | $ | $ | $ | $ | $ | |
| January | .304 | .295 | .268 | .307 | .316 | .306 | .377 | .463 | .572 | .648 |
| February | .221 | .291 | .228 | .284 | .292 | .268 | .358 | .494 | .483 | |
| March | .165 | .245 | .194 | .242 | .213 | .212 | .338 | .404 | .331 | |
| April | .149 | .178 | .164 | .176 | .166 | .179 | .259 | .312 | .343 | |
| May | .147 | .171 | .161 | .168 | .171 | .181 | .300 | .310 | .368 | |
| June | .145 | .167 | .169 | .173 | .166 | .190 | .311 | .298 | .386 | |
| July | .142 | .167 | .170 | .176 | .168 | .197 | .283 | .307 | .368 | |
| August | .155 | .174 | .172 | .182 | .170 | .207 | .298 | .344 | .393 | |
| September | .174 | .191 | .195 | .210 | .187 | .233 | .332 | .364 | .410 | |
| October | .200 | .220 | .234 | .235 | .223 | .281 | .374 | .416 | .447 | |
| November | .235 | .259 | .274 | .253 | .263 | .322 | .394 | .472 | .540 | |
| December | .287 | .297 | .330 | .297 | .306 | .381 | .433 | .550 | .619 |
| 1911. | 1912. | 1913. | 1914. | 1915. | 1916. | 1917. | 1918. | 1919. | 1920. | |
|---|---|---|---|---|---|---|---|---|---|---|
| $ | $ | $ | $ | $ | $ | $ | $ | $ | $ | |
| January | .541 | .845 | .506 | .684 | .497 | .706 | 1.473 | 1.210 | 1.161 | 1.786 |
| February | .551 | .944 | .531 | .697 | .504 | .880 | 1.724 | 1.229 | 1.144 | |
| March | .553 | 1.020 | .520 | .707 | .504 | .944 | 2.407 | 1.203 | 1.094 | |
| April | .555 | 1.171 | .503 | .700 | .478 | .976 | 2.347 | .926 | 1.054 | |
| May | .625 | 1.273 | .482 | .714 | .505 | .948 | 2.796 | .801 | 1.189 | |
| June | .633 | 1.197 | .552 | .713 | .508 | .988 | 2.740 | .755 | 1.214 | |
| July | .963 | 1.036 | .498 | .815 | .521 | 1.023 | 2.479 | .949 | 1.284 | |
| August | 1.360 | .865 | .692 | .871 | .563 | .954 | 1.708 | 1.416 | 1.928 | |
| September | 1.137 | .650 | .753 | .749 | .505 | 1.093 | 1.391 | 1.488 | 1.875 | |
| October | .883 | .511 | .739 | .647 | .488 | 1.120 | 1.221 | 1.436 | 1.642 | |
| November | .763 | .455 | .696 | .528 | .608 | 1.357 | 1.278 | 1.272 | 1.528 | |
| December | .799 | .505 | .687 | .487 | .617 | 1.461 | 1.228 | 1.192 | 1.614 |
| 1911. | 1912. | 1913. | 1914. | 1915. | 1916. | 1917. | 1918. | 1919. | 1920. | |
|---|---|---|---|---|---|---|---|---|---|---|
| $ | $ | $ | $ | $ | $ | $ | $ | $ | $ | |
| January | .202 | .207 | .238 | .250 | .253 | .256 | .276 | .326 | .410 | .405 |
| February | .202 | .207 | .238 | .250 | .248 | .256 | .286 | .331 | .410 | |
| March | .202 | .213 | .245 | .253 | .245 | .263 | .293 | .336 | .417 | |
| April | .202 | .220 | .256 | .253 | .250 | .268 | .316 | .364 | .435 | |
| May | .204 | .235 | .256 | .258 | .256 | .276 | .321 | .397 | .443 | |
| June | .204 | .240 | .258 | .261 | .261 | .286 | .326 | .425 | .430 | |
| July | .207 | .243 | .263 | .268 | .266 | .286 | .326 | .420 | .433 | |
| August | .207 | .245 | .263 | .278 | .263 | .283 | .329 | .412 | .420 | |
| September | .204 | .243 | .261 | .271 | .263 | .281 | .331 | .415 | .409 | |
| October | .202 | .240 | .256 | .261 | .261 | .273 | .329 | .407 | .398 | |
| November | .202 | .235 | .253 | .253 | .256 | .268 | .314 | .402 | .393 | |
| December | .202 | .233 | .250 | .256 | .250 | .268 | .319 | .402 | .391 |
| 1911. | 1912. | 1913. | 1914. | 1915. | 1916. | 1917. | 1918. | 1919. | 1920. | |
|---|---|---|---|---|---|---|---|---|---|---|
| $ | $ | $ | $ | $ | $ | $ | $ | $ | $ | |
| January | .172 | .177 | .203 | .225 | .225 | .225 | .245 | .303 | .387 | .370 |
| February | .172 | .177 | .206 | .225 | .221 | .225 | .259 | .312 | .385 | |
| March | .175 | .179 | .212 | .228 | .219 | .230 | .263 | .316 | .391 | |
| April | .175 | .188 | .219 | .228 | .221 | .239 | .287 | .343 | .402 | |
| May | .175 | .201 | .221 | .232 | .228 | .248 | .294 | .376 | .413 | |
| June | .177 | .206 | .223 | .234 | .232 | .259 | .298 | .402 | .400 | |
| July | .177 | .206 | .230 | .241 | .236 | .256 | .303 | .400 | .404 | |
| August | .177 | .210 | .230 | .250 | .236 | .254 | .305 | .393 | .391 | |
| September | .170 | .206 | .230 | .243 | .234 | .254 | .294 | .393 | .379 | |
| October | .175 | .203 | .230 | .236 | .230 | .245 | .305 | .387 | .369 | |
| November | .172 | .199 | .225 | .232 | .225 | .239 | .294 | .382 | .362 | |
| December | .172 | .199 | .223 | .228 | .223 | .236 | .296 | .378 | .359 |
| 1911. | 1912. | 1913. | 1914. | 1915. | 1916. | 1917. | 1918. | 1919. | 1920. | |
|---|---|---|---|---|---|---|---|---|---|---|
| $ | $ | $ | $ | $ | $ | $ | $ | $ | $ | |
| January | .166 | .168 | .188 | .198 | .200 | .200 | .216 | .257 | .327 | .314 |
| February | .168 | .170 | .188 | .200 | .198 | .202 | .226 | .263 | .327 | |
| March | .168 | .172 | .194 | .200 | .196 | .206 | .234 | .267 | .335 | |
| April | .170 | .180 | .200 | .202 | .198 | .210 | .251 | .293 | .347 | |
| May | .168 | .192 | .200 | .202 | .200 | .218 | .257 | .319 | .352 | |
| June | .168 | .196 | .202 | .204 | .204 | .224 | .261 | .335 | .339 | |
| July | .168 | .194 | .202 | .208 | .206 | .222 | .257 | .333 | .325 | |
| August | .168 | .196 | .202 | .214 | .206 | .220 | .255 | .327 | .312 | |
| September | .168 | .192 | .200 | .208 | .204 | .218 | .259 | .327 | .312 | |
| October | .168 | .190 | .200 | .206 | .202 | .214 | .257 | .323 | .306 | |
| November | .166 | .188 | .198 | .204 | .200 | .210 | .251 | .321 | .302 | |
| December | .166 | .184 | .198 | .200 | .198 | .210 | .253 | .319 | .303 |
| 1911. | 1912. | 1913. | 1914. | 1915. | 1916. | 1917. | 1918. | 1919. | 1920. | |
|---|---|---|---|---|---|---|---|---|---|---|
| $ | $ | $ | $ | $ | $ | $ | $ | $ | $ | |
| January | .184 | .171 | .188 | .209 | .186 | .188 | .238 | .344 | .407 | .373 |
| February | .181 | .162 | .190 | .211 | .179 | .194 | .264 | .338 | .380 | |
| March | .181 | .173 | .205 | .211 | .179 | .219 | .281 | .340 | .388 | |
| April | .175 | .192 | .217 | .217 | .198 | .226 | .308 | .359 | .416 | |
| May | .175 | .194 | .211 | .224 | .209 | .230 | .308 | .369 | .433 | |
| June | .175 | .192 | .209 | .217 | .207 | .232 | .312 | .377 | .426 | |
| July | .179 | .194 | .217 | .224 | .211 | .234 | .319 | .380 | .464 | |
| August | .190 | .211 | .219 | .251 | .217 | .245 | .346 | .424 | .471 | |
| September | .192 | .222 | .228 | .238 | .226 | .264 | .390 | .464 | .460 | |
| October | .188 | .222 | .226 | .232 | .232 | .249 | .390 | .456 | .443 | |
| November | .169 | .196 | .215 | .219 | .209 | .234 | .348 | .435 | .421 | |
| December | .162 | .181 | .205 | .196 | .184 | .224 | .340 | .416 | .381 |
| 1911. | 1912. | 1913. | 1914. | 1915. | 1916. | 1917. | 1918. | 1919. | 1920. | |
|---|---|---|---|---|---|---|---|---|---|---|
| $ | $ | $ | $ | $ | $ | $ | $ | $ | $ | |
| January | .257 | .235 | .257 | .268 | .276 | .276 | .300 | .491 | .592 | .504 |
| February | .254 | .232 | .259 | .268 | .270 | .276 | .311 | .489 | .560 | |
| March | .251 | .232 | .265 | .270 | .268 | .281 | .336 | .494 | .554 | |
| April | .248 | .240 | .270 | .270 | .268 | .284 | .385 | .500 | .579 | |
| May | .248 | .243 | .273 | .270 | .268 | .287 | .423 | .511 | .573 | |
| June | .248 | .246 | .276 | .273 | .270 | .292 | .431 | .521 | .579 | |
| July | .251 | .246 | .284 | .276 | .273 | .292 | .434 | .530 | .587 | |
| August | .254 | .248 | .287 | .292 | .273 | .295 | .437 | .546 | .584 | |
| September | .251 | .257 | .284 | .295 | .273 | .300 | .448 | .568 | .556 | |
| October | .248 | .265 | .281 | .289 | .276 | .300 | .486 | .584 | .528 | |
| November | .240 | .265 | .276 | .284 | .276 | .303 | .489 | .590 | .510 | |
| December | .238 | .262 | .270 | .281 | .276 | .300 | .494 | .592 | .503 |