2009

10.0

1991

6.6

1989

2.0

1991

0.0

1971

0.0

2006

6.8

2002

6.9

1983

6.0

1966

0.0

2002

5.4

2007

7.0

1985

5.8

1997

4.5

1972

5.9

1969

4.0

1966

5.8