Newer
Older
PERIOD VALUE
1975 1851
1976 2856
1977 4216
1978 4585
1979 4570
1980 5609
1981 7864
1982 5821
1983 5538
1984 8317
1985 10679
1986 9583
1987 12827
1988 17081
1989 15953
1990 30
1991 5219
1992 9955
1993 13572
1994 20671
1995 24855
1996 24761
1997 29678
1998 14539
1999 9883
2000 2884
2001 397
2002 323