2005

6.2

1988

6.8

1997

5.3

1996

6.4

2008

5.8

1954

7.2

2004

6.4

2002

5.2

1966

7.5

1999

6.8

2007

6.4

1974

7.2

2003

7.9

1999

6.0

1973

7.3

1942

7.1

2021

4.9

2023

5.4

1965

7.7

1987

7.1