|
| Années | Valeurs | Variations (%) ** |
| 1961 | 14 000 |
|
| 1962 | 10 500 |
-25,00 |
| 1963 | 14 100 |
34,29 |
| 1964 | 12 900 |
-8,51 |
| 1965 | 11 800 |
-8,53 |
| 1966 | 6 900 |
-41,53 |
| 1967 | 6 400 |
-7,25 |
| 1968 | 4 500 |
-29,69 |
| 1969 | 4 600 |
2,22 |
| 1970 | 2 700 |
-41,30 |
| 1971 | 3 100 |
14,81 |
| 1972 | 2 200 |
-29,03 |
| 1973 | 2 102 |
-4,45 |
| 1974 | 2 428 |
15,51 |
| 1975 | 1 740 |
-28,34 |
| 1976 | 1 620 |
-6,90 |
| 1977 | 1 530 |
-5,56 |
| 1978 | 1 060 |
-30,72 |
| 1979 | 990 |
-6,60 |
| 1980 | 1 220 |
23,23 |
| 1981 | 250 |
-79,51 |
| 1982 | 160 |
-36,00 |
| 1983 | 30 |
-81,25 |
| 1984 | 20 |
-33,33 |
| 1985 | 50 |
150,00 |
| 1986 | 60 |
20,00 |
| 1987 | 113 |
88,33 |
| 1988 | 120 |
6,19 |
| 1989 | 100 |
-16,67 |
| 1990 | 100 |
0,00 |
|
