1966

6.4

1945

7.6

1994

7.5

1956

6.5

2003

7.3

2001

6.0

2010

7.1

1965

6.6

2005

5.8

1974

7.0

1989

7.2

1950

7.0

2014

4.6

1949

7.7

1948

8.0

1985

6.7

1971

6.8

2015

8.1

1992

6.8

2003

7.2