1956

7.5

1975

6.4

1996

5.8

2021

7.2

2006

5.5

1991

7.0

1986

7.3

2012

7.0

1999

7.5

1943

7.5

1945

7.6

2008

6.8

2009

6.1

1984

6.5

2005

6.6

1967

6.8

1975

7.3

1955

7.1

1962

7.9

2003

5.7