1969

3.5

2023

4.8

1968

7.2

1999

6.3

1980

6.3

1980

6.3

2002

6.9

2001

4.9

2011

4.0

2006

4.8

1967

7.3

2004

6.5

2006

6.6

2017

5.3

2011

6.3

1986

6.7

1948

6.5

1945

6.8

1993

6.5

2009

6.6