1976

7.3

1989

6.3

2017

7.3

2011

3.1

1986

6.8

1971

6.9

1964

6.5

2005

5.2

2006

5.9

2010

7.0

1944

7.6

2022

4.5

2007

6.1

2015

6.0

1963

7.0

2014

7.0

2020

7.1

1950

7.3

1896

5.2

1965

5.5