2007

5.8

2008

0.0

1972

4.5

1977

0.0

1999

7.0

2001

4.6

1977

0.0

1972

0.0

1978

6.2

2005

6.6

1969

5.0

1979

6.5

1986

4.7

1988

7.5

1988

5.2

1993

0.0

2004

6.3

1984

0.0

1970

3.0

1962

0.0

2002

6.0

2011

4.5