Jan. |
Feb. |
Mar. |
Apr. |
May |
Jun. |
Jul. |
Aug. |
Sep. |
Oct. |
Nov. |
Dec. |
Annual |
|
| 1986 | n/a |
n/a |
n/a |
n/a |
n/a |
352.6 |
n/a |
340.7 |
340.8 |
349 |
354.1 |
354.1 |
n/a |
| 1987 | 356.3 |
356.9 |
n/a |
357.4 |
358.7 |
358 |
348.6 |
n/a |
343.1 |
345.7 |
350.3 |
354.4 |
n/a |
| 1988 | 357.7 |
358.2 |
359.6 |
359.8 |
359.6 |
357.7 |
349.4 |
347.8 |
348.8 |
354.2 |
357.2 |
361.4 |
356 |
| 1989 | 360.1 |
361 |
362.2 |
362 |
359.4 |
360.7 |
356.1 |
350.4 |
348.2 |
350.8 |
358.4 |
357.7 |
357.3 |
| 1990 | 359.5 |
361.1 |
363.2 |
364.8 |
361.6 |
357.2 |
352 |
346.7 |
349.4 |
351.1 |
357.2 |
n/a |
n/a |
| 1991 | 362.7 |
n/a |
363.5 |
361.6 |
362 |
360.7 |
353.5 |
348.8 |
353.9 |
357.3 |
359.4 |
362.2 |
n/a |
| 1992 | 364.5 |
363.1 |
368.3 |
367.9 |
364.7 |
362.8 |
355.7 |
348.7 |
347.9 |
n/a |
362.5 |
n/a |
n/a |
| 1993 | 364.8 |
362.6 |
364.2 |
364.4 |
365 |
361.1 |
351 |
351.1 |
350.4 |
353.8 |
n/a |
n/a |
n/a |