1943

0.0

1988

6.2

2007

6.6

2008

7.0

1985

6.5

1988

6.7

2004

5.3

1965

7.1

1970

7.6

1990

7.3

1967

6.8

1956

6.7

2005

6.3

2010

7.5

1977

5.9

1923

6.5

2001

5.2

1957

5.0

2021

6.5

1939

6.9