269.5
1992
1830
79.6
1993
1430
80.9
1994
1670
74.6
1995
2020
82.2
1996
1950
84.8
1997
1880
82.2
1998
2470
87.4
1999
2040
74.6
2000
3100
77.0
2001
1780
69.8
2002
1740
88.0
2003
2050
85.6
2004
1480
73.8
2005
1690
86.8
2006
2510
73.8

























































