|
| Années | Valeurs | Variations (%) ** |
| 1960 | 94,30 |
|
| 1961 | 89,60 |
-4,98 |
| 1962 | 89,50 |
-0,11 |
| 1963 | 73,90 |
-17,43 |
| 1964 | 75,50 |
2,17 |
| 1965 | 77,80 |
3,05 |
| 1966 | 80,30 |
3,21 |
| 1967 | 77,90 |
-2,99 |
| 1968 | 80,40 |
3,21 |
| 1969 | 80,00 |
-0,50 |
| 1970 | 84,50 |
5,62 |
| 1971 | 76,60 |
-9,35 |
| 1972 | 94,90 |
23,89 |
| 1973 | 103,00 |
8,54 |
| 1974 | 83,70 |
-18,74 |
| 1975 | 85,00 |
1,55 |
| 1976 | 67,10 |
-21,06 |
| 1977 | 107,00 |
59,46 |
| 1978 | 115,00 |
7,48 |
| 1979 | 114,00 |
-0,87 |
| 1980 | 119,00 |
4,39 |
| 1981 | 116,00 |
-2,52 |
| 1982 | 102,00 |
-12,07 |
| 1983 | 96,00 |
-5,88 |
| 1984 | 99,00 |
3,12 |
| 1985 | 105,00 |
6,06 |
| 1986 | 73,00 |
-30,48 |
| 1987 | 72,00 |
-1,37 |
| 1988 | 69,00 |
-4,17 |
| 1989 | 61,00 |
-11,59 |
| 1990 | 66,00 |
8,20 |
| 1991 | 71,00 |
7,58 |
| 1992 | 72,00 |
1,41 |
| 1993 | 79,00 |
9,72 |
| 1994 | 73,16 |
-7,39 |
| 1995 | 68,87 |
-5,86 |
| 1996 | 75,25 |
9,26 |
| 1997 | 78,23 |
3,96 |
| 1998 | 81,00 |
3,54 |
| 1999 | 80,00 |
-1,23 |
| 2000 | 82,15 |
2,69 |
| 2001 | 76,75 |
-6,57 |
| 2002 | 62,42 |
-18,67 |
| 2003 | 39,39 |
-36,90 |
| 2004 | 41,40 |
5,10 |
| 2005 | 46,00 |
11,11 |
| 2006 | 41,30 |
-10,22 |
| 2007 | 41,98 |
1,65 |
| 2008 | 33,48 |
-20,25 |
| 2009 | 34,52 |
3,11 |
| 2010 | 32,65 |
-5,42 |
| 2011 | 30,85 |
-5,51 |
| 2012 | 31,00 |
0,49 |
|
