1984

6.5

2002

7.8

7.8

2007

5.7

1989

6.6

1972

7.1

1969

6.2

2008

6.8

5.3

2020

7.4

1986

6.2

1941

7.4

1997

7.5

2003

5.8

1983

6.9

1973

6.5

1980

7.0

2017

7.9

0.0

2022

8.1