1980

5.8

2015

7.4

2009

7.1

1992

8.9

1976

6.9

1921

7.6

2009

4.1

1990

7.0

1962

8.4

2003

7.3

2003

6.5

2011

7.1

1995

5.9

2003

6.6

2011

7.0

1962

7.9

2023

7.2

2020

7.4

1930

6.8

2023

6.5