| 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 |
| 2005 | |
| 73 |
1.29 |
2.79 |
0.14 |
0.54 |
0.24 |
| 75 |
1.24 |
3.42 |
0.61 |
0.55 |
0.3 |
| 81 |
1.13 |
3.1 |
1.44 |
0.67 |
0.33 |
| 83 |
1.16 |
2.67 |
1.59 |
0.75 |
0.35 |
| 92 |
1.19 |
2.77 |
1.08 |
0.85 |
0.39 |
| 96 |
1.3 |
3.07 |
0.98 |
0.87 |
0.41 |
| 104 |
1.64 |
3.66 |
1.16 |
0.96 |
0.44 |
| 119 |
1.99 |
4.36 |
1.29 |
1.12 |
0.49 |
| 130 |
2.14 |
5.22 |
1.27 |
1.25 |
0.58 |
| 134 |
2.26 |
5.79 |
1.66 |
1.34 |
0.65 |
| 136 |
2.31 |
6.31 |
1.81 |
1.4 |
0.7 |
| 140 |
2.31 |
6.61 |
2.02 |
1.49 |
0.72 |
| 141 |
2.23 |
6.67 |
2.12 |
1.5 |
0.73 |
| 141 |
2.41 |
6.77 |
2.29 |
1.52 |
0.72 |
| 142 |
2.72 |
7.2 |
2.27 |
1.54 |
0.72 |
| 144 |
3.59 |
8.48 |
2.28 |
1.55 |
0.72 |
| 155 |
4.92 |
10.87 |
2.32 |
1.58 |
0.74 |
| 158 |
6 |
13.91 |
2.9 |
1.61 |
0.78 |
| 161 |
7.3 |
17.72 |
3.44 |
1.63 |
0.8 |
| 151 |
5.68 |
15.74 |
3.99 |
1.64 |
0.81 |
| 150 |
5.65 |
16.7 |
4.58 |
1.6 |
0.79 |
| 149 |
5.16 |
16.52 |
5.08 |
1.49 |
0.78 |
| 86 |
3.54 |
14.8 |
5.08 |
0.97 |
0.53 |
| 82 |
3.1 |
12.93 |
4.77 |
0.57 |
0.31 |
| 62 |
4.22 |
12.25 |
4.67 |
0.59 |
0.34 |
| 57 |
4.67 |
12.07 |
4.12 |
0.6 |
0.36 |
| 53 |
4.33 |
12.81 |
3.22 |
0.57 |
0.37 |
| 51 |
4.36 |
12.94 |
3.83 |
0.55 |
0.37 | |
