1976 |    70931
 1977 |    69810
 1978 |    70583
 1979 |    52481
 1980 |    66210
 1981 |    71108
 1982 |    63294
 1983 |    62018
 1984 |    72693
 1985 |    77275
 1986 |    77044
 1987 |    89607
 1988 |    90946
 1989 |   102718
 1990 |    99270
 1991 |   106878
 1992 |   107531
 1993 |   109904
 1994 |   113715
 1995 |   113952
 1996 |   121807
 1997 |   124181
 1998 |   163264
 1999 |   169241
 2000 |   176193
 2001 |   184171
 2002 |   184519