-19
-160
-140
-120
-100
-80
-60
-40
-20
-49
1980
8
1981
2
1982
-11
1983
-7
1984
-51
1985
-48
1986
-61
1987
-9
1988
-19
1989
-73
1990
-31
1991
-25
1992
-15
1993
-28
1994
-14
1995
-28
1996
-19
1997
3
1998
-14
1999
-48
2000
-46
2001
-52
2002
-76
2003
-97
2004
-101
2005
-169
2006
-151
2007
-132
2008
-19
2009
