| 1985 |
| 1986 |
| 1987 |
| 1988 |
| 1989 |
| 1990 |
| 1991 |
| 1992 |
| 1993 |
| 1994 |
| 1995 |
| 1996 |
| 1997 |
| 1998 |
| 1999 |
| 2000 |
| 2001 |
| 2002 |
| 2003 | |
| 47.85 |
28.69 |
18.91 |
0.25 |
| 58.01 |
35.45 |
22.23 |
0.33 |
| 66.62 |
40.68 |
25.44 |
0.5 |
| 85.04 |
52.71 |
31.5 |
0.83 |
| 94.46 |
59.08 |
34.17 |
1.21 |
| 102.76 |
66.1 |
35.33 |
1.33 |
| 115.98 |
74.42 |
39.39 |
2.17 |
| 138.04 |
90.82 |
43.44 |
3.78 |
| 192.98 |
123.08 |
58.8 |
11.1 |
| 274.27 |
175.09 |
76.99 |
22.19 |
| 324.25 |
201.67 |
90.46 |
32.12 |
| 361.84 |
222.18 |
98.06 |
41.6 |
| 402.01 |
251.85 |
100.13 |
50.03 |
| 422.51 |
257.01 |
74.83 |
90.67 |
| 456.04 |
273.77 |
66.23 |
116.04 |
| 501.07 |
293.83 |
56.99 |
150.25 |
| 589.48 |
351.4 |
47.61 |
190.47 |
| 664.01 |
397.69 |
47.24 |
219.08 |
| 797.54 |
469.63 |
49.68 |
278.23 | |
