1967

0.0

1996

6.4

2012

8.7

2006

6.5

2002

0.0

1979

7.3

1998

7.9

2007

5.9

2005

6.7

1986

6.9

1972

7.4

2004

6.5

1941

5.2

1937

5.4

1955

0.0

2007

7.2

1932

6.9

1930

6.9

1955

6.6

2017

0.0