1955

6.6

2008

6.7

1981

6.0

2012

0.0

1951

0.0

1943

6.8

1995

7.0

1946

7.8

1942

6.6

1997

7.2

2021

7.0

2000

6.0

2006

6.9

1976

7.8

2001

6.9

2001

5.6

2007

7.4

1998

7.5

2020

6.2

1990

7.3