| 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 | |
| 112.26 |
109.58 |
110.04 |
109.95 |
131.12 |
93.69 |
| 109.85 |
105.62 |
103.41 |
115.71 |
133.27 |
94.59 |
| 110.78 |
107.65 |
104.36 |
115.71 |
128.88 |
96.69 |
| 128.98 |
127.88 |
123.64 |
113.26 |
148.37 |
102.71 |
| 124.88 |
122.05 |
114.82 |
116.93 |
149.42 |
99.7 |
| 145.51 |
145.51 |
132.39 |
149.29 |
156.79 |
116.48 |
| 151.17 |
146.44 |
125.92 |
155.09 |
176.43 |
136.74 |
| 159.3 |
152.77 |
126.9 |
149.9 |
185.83 |
162.85 |
| 164.65 |
158.47 |
125.65 |
161.5 |
181.27 |
184.84 |
| 168.39 |
162.26 |
122.63 |
157.53 |
189.1 |
182.79 |
| 170.76 |
166.71 |
124.53 |
152.65 |
185.44 |
182.16 |
| 175.37 |
170.34 |
128.84 |
166.08 |
187.23 |
198.14 |
| 186.67 |
181.51 |
137.66 |
185.57 |
192.05 |
217.84 |
| 193.7 |
179.2 |
129 |
198.03 |
209.41 |
251.91 |
| 202.65 |
184.9 |
127.48 |
240.93 |
203.5 |
286.54 |
| 221.5 |
191.86 |
127.47 |
283.27 |
204.03 |
383.96 |
| 242.72 |
205.46 |
135.15 |
302.47 |
202.14 |
482.07 |
| 258.08 |
221.62 |
142.54 |
319.98 |
203.38 |
516.58 |
| 270.66 |
223.18 |
142.51 |
340.13 |
222.24 |
570.26 |
| 280.94 |
223.98 |
143.15 |
328.23 |
230.46 |
640.51 |
| 294.15 |
233.77 |
153.57 |
351.75 |
242.33 |
669.03 |
| 307.67 |
230.7 |
150.09 |
391.15 |
265.45 |
741.95 |
| 322.75 |
240.16 |
160.75 |
414.23 |
288.28 |
769.4 |
| 336.31 |
155.05 |
171.36 |
417.96 |
300.39 |
787.87 |
| 348.29 |
267.73 |
180.78 |
429.21 |
306.42 |
811.56 | |