2005

5.7

1951

5.8

1982

5.9

1986

5.8

1955

6.7

1987

5.7

2006

6.3

1985

4.3

1945

7.2

1970

6.0

2013

7.6

1983

7.0

1989

5.8

1988

6.3

2020

6.2

1966

6.3

2008

6.8

2025

6.1

2003

6.7

2005

5.4