1967

7.3

2005

5.8

1968

6.5

2022

4.5

2010

6.6

1965

6.8

1986

7.6

1961

7.7

1964

7.0

1987

6.2

1945

7.0

1985

6.1

2000

7.4

2018

7.3

2005

7.5

2013

7.6

1947

7.5

2003

5.8

1916

7.1

1998

6.3