| 1978 |
| 1979 |
| 1980 |
| 1981 |
| 1982 |
| 1983 |
| 1984 |
| 1985 |
| 1986 |
| 1987 |
| 1988 |
| 1989 |
| 1990 |
| 1991 |
| 1992 |
| 1993 |
| 1994 |
| 1995 |
| 1996 |
| 1997 |
| 1998 |
| 1999 |
| 2000 |
| 2001 |
| 2002 |
| 2003 |
| 2004 | |
| 23.23 |
|
|
|
| 26.11 |
|
|
|
| 33.25 |
|
|
|
| 34.16 |
|
|
|
| 41.72 |
|
|
|
| 44.04 |
|
|
|
| 64.89 |
|
|
|
| 102.2 |
|
|
|
| 127.39 |
|
|
|
| 156.2 |
|
|
|
| 188.95 |
|
|
|
| 179.49 |
|
|
|
| 186.96 |
|
|
9.54 |
| 239.75 |
|
|
11.73 |
| 361.18 |
|
|
24.23 |
| 683.83 |
|
|
93.15 |
| 1006.39 |
|
|
155.82 |
| 1357.9 |
|
|
246.38 |
| 1617.53 |
|
|
243.54 |
| 1694.57 |
|
|
215.44 |
| 1847.93 |
|
|
226.69 |
| 1886.04 |
|
|
271.99 |
| 2267.22 |
|
|
362.18 |
| 2776.69 |
|
|
544.91 |
| 3596.31 |
|
|
728.8 |
| 4993.57 |
4180.38 |
3200.33 |
980.05 |
| 6059.78 |
5384.38 |
4031.31 |
1353.07 | |