Jan. |
Feb. |
Mar. |
Apr. |
May |
Jun. |
Jul. |
Aug. |
Sep. |
Oct. |
Nov. |
Dec. |
Ann. |
|
1972 | 347.73 |
350.26 |
342.43 |
336.82 |
336.24 |
335.52 |
335.11 |
334.37 |
335.66 |
341.45 |
347.83 |
346.39 |
340.82 |
1973 | 349.17 |
343.9 |
345.04 |
341.78 |
337.04 |
333.31 |
333.39 |
333.13 |
335.05 |
343.1 |
342.79 |
347 |
340.39 |
1974 | 343.28 |
345.85 |
352.7 |
343.29 |
337.46 |
335.03 |
333.15 |
332.31 |
330.44 |
339.42 |
342.82 |
341.62 |
339.78 |
1975 | 342.62 |
344.78 |
345.97 |
342.05 |
338.31 |
334.82 |
329.83 |
333.83 |
331.51 |
340.97 |
347.51 |
347.24 |
339.95 |
1976 | 342.97 |
352.15 |
345.8 |
343.74 |
337.46 |
334.77 |
339.32 |
330.85 |
336.13 |
345.04 |
348.87 |
350.38 |
342.29 |
1977 | 346.45 |
343.4 |
344.5 |
342.57 |
342.61 |
340.68 |
335.31 |
341.41 |
338.51 |
348.04 |
344.16 |
351.76 |
343.28 |
1978 | 347.13 |
355.83 |
344.75 |
347.54 |
342.14 |
336.13 |
335.98 |
332.66 |
335.16 |
345.16 |
355.39 |
349.88 |
343.98 |
1979 | 355.04 |
357.85 |
349.92 |
349.63 |
345.32 |
340.19 |
339.77 |
335.54 |
337 |
346.87 |
348.79 |
348.39 |
346.19 |
1980 | 354.25 |
352.58 |
355.84 |
349 |
345.02 |
341.2 |
337.59 |
340.58 |
337.55 |
344.46 |
351.86 |
349.88 |
346.65 |
1981 | 353.05 |
356.86 |
349.43 |
353 |
340.71 |
337.07 |
340.28 |
340.66 |
338.91 |
346.4 |
350.84 |
358.45 |
347.14 |
1982 | n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
1983 | n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
1984 | 352.54 |
360.71 |
359.4 |
357.74 |
352.09 |
345.28 |
343.94 |
345.06 |
345.87 |
350.63 |
360.03 |
357.46 |
352.56 |
1985 | 364.48 |
357.82 |
360.82 |
353.89 |
351.45 |
344.86 |
337.5 |
335.34 |
338.49 |
348.98 |
357.03 |
356.32 |
350.58 |
1986 | 352.62 |
363.11 |
365.66 |
361.5 |
358.44 |
349.44 |
347.26 |
348.49 |
349.66 |
359.61 |
358.43 |
355.78 |
355.83 |
1987 | 368.52 |
366.74 |
358.66 |
360.03 |
358.5 |
354.49 |
363.52 |
354.49 |
354.01 |
360.39 |
368.49 |
362.98 |
360.9 |
1988 | 358.42 |
360.35 |
360.26 |
360.94 |
358.56 |
358.8 |
356.2 |
355.57 |
354.41 |
363.68 |
365.75 |
365.45 |
359.87 |
1989 | 371 |
369.36 |
364.11 |
365.88 |
359.92 |
359.81 |
360.75 |
358.33 |
359.1 |
363.87 |
365.46 |
367.52 |
363.76 |
1990 | 370.41 |
365.58 |
367.2 |
361.67 |
358.76 |
355.38 |
357.43 |
357.29 |
358.32 |
363.88 |
n/a |
n/a |
n/a |
1991 | n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
379.39 |
371.3 |
n/a |
1992 | 368 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |