1985

7.5

2005

6.1

1980

0.0

1992

0.0

1998

8.1

2009

7.4

1977

9.0

2001

0.0

2008

7.1

1999

0.0

2000

7.5

1993

0.0

1960

0.0

1964

0.0

1984

10.0

1996

0.0

1982

0.0

1999

4.2

1989

7.0

2003

6.1