| 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 | |
| 65.71 |
50.82 |
48.86 |
1.99 |
9.42 |
3.48 |
| 91.84 |
69.47 |
67.29 |
2.75 |
15.55 |
4.07 |
| 92.67 |
64.23 |
60.52 |
3.61 |
19.39 |
5.44 |
| 95.56 |
69.21 |
64.48 |
3.79 |
16.45 |
6.11 |
| 118.04 |
84.61 |
77.91 |
4.42 |
22.88 |
6.13 |
| 118.68 |
83.65 |
74.87 |
4.77 |
23.41 |
6.85 |
| 147.49 |
102.8 |
89.93 |
6.67 |
27.01 |
11.01 |
| 174.05 |
111.2 |
92.85 |
8.87 |
37.84 |
16.14 |
| 192.04 |
122.97 |
101 |
9.26 |
40.09 |
19.72 |
| 227.18 |
141.09 |
113.91 |
11.61 |
48.57 |
25.91 |
| 280.94 |
162.8 |
129.89 |
14.4 |
70.33 |
33.41 |
| 304.5 |
181.26 |
145.97 |
13.6 |
75.68 |
33.96 |
| 331.56 |
199.48 |
163.92 |
16 |
75.18 |
40.9 |
| 363.22 |
217.21 |
180 |
17.42 |
76.78 |
51.81 |
| 396.93 |
226.46 |
179.94 |
21.01 |
85.23 |
64.23 |
| 490.13 |
274.85 |
218.01 |
29.8 |
92.11 |
93.37 |
| 690.2 |
372.97 |
305.58 |
41.92 |
134.78 |
140.53 |
| 868.76 |
481.9 |
407.24 |
50.02 |
142.03 |
194.81 |
| 932.85 |
517.29 |
431.9 |
54.77 |
155.88 |
204.92 |
| 1004.88 |
516.21 |
426.56 |
59.26 |
190.03 |
239.38 |
| 1003.66 |
522.98 |
434.22 |
59.46 |
165.85 |
255.37 |
| 1005.22 |
519 |
431.57 |
62.31 |
157 |
266.91 |
| 1057.07 |
521.31 |
446.15 |
54.48 |
183.94 |
297.36 |
| 1053.57 |
488.59 |
471.52 |
60.2 |
195.94 |
308.84 |
| 1101.86 |
511.42 |
495.72 |
60.84 |
205.09 |
324.51 |
| 1165.23 |
529.44 |
515.24 |
65.67 |
233.01 |
337.11 | |