1948

8.0

2012

5.9

2006

6.7

2000

6.2

1969

6.5

1971

7.1

1989

5.1

2005

7.7

1990

6.1

1989

7.3

1986

6.2

2017

8.2

2002

7.4

2008

6.8

1976

5.6

1971

6.8

2023

7.4

1993

7.4

1940

7.4

1975

6.7