|
| Années | Valeurs | Variations (%) ** |
| 1961 | 2 373 |
|
| 1962 | 1 648 |
-30,55 |
| 1963 | 1 393 |
-15,47 |
| 1964 | 987 |
-29,15 |
| 1965 | 702 |
-28,88 |
| 1966 | 464 |
-33,90 |
| 1967 | 298 |
-35,78 |
| 1968 | 299 |
0,34 |
| 1969 | 254 |
-15,05 |
| 1970 | 154 |
-39,37 |
| 1971 | 78 |
-49,35 |
| 1972 | 48 |
-38,46 |
| 1973 | 24 |
-50,00 |
| 1974 | 22 |
-8,33 |
| 1975 | 27 |
22,73 |
| 1976 | 25 |
-7,41 |
| 1977 | 35 |
40,00 |
| 1978 | 32 |
-8,57 |
| 1979 | 33 |
3,12 |
| 1980 | 41 |
24,24 |
| 1981 | 49 |
19,51 |
| 1982 | 74 |
51,02 |
| 1983 | 99 |
33,78 |
| 1984 | 114 |
15,15 |
| 1985 | 143 |
25,44 |
| 1986 | 174 |
21,68 |
| 1987 | 212 |
21,84 |
| 1988 | 205 |
-3,30 |
| 1989 | 220 |
7,32 |
| 1990 | 249 |
13,18 |
| 1991 | 236 |
-5,22 |
| 1992 | 242 |
2,54 |
| 1993 | 241 |
-0,41 |
| 1994 | 238 |
-1,24 |
| 1995 | 208 |
-12,61 |
| 1996 | 183 |
-12,02 |
| 1997 | 164 |
-10,38 |
| 1998 | 155 |
-5,49 |
| 1999 | 134 |
-13,55 |
| 2000 | 112 |
-16,42 |
| 2001 | 118 |
5,36 |
| 2002 | 113 |
-4,24 |
| 2003 | 101 |
-10,62 |
| 2004 | 123 |
21,78 |
| 2005 | 126 |
2,44 |
| 2006 | 104 |
-17,46 |
| 2007 | 105 |
0,96 |
| 2008 | 128 |
21,90 |
| 2009 | 143 |
11,72 |
| 2010 | 150 |
4,90 |
| 2011 | 160 |
6,67 |
| 2012 | 165 |
3,12 |
| 2013 | 167 |
1,21 |
|
