2015

6.4

5.0

1975

4.5

2021

6.2

6.4

1923

8.5

1993

5.4

2009

7.5

2010

7.7

1949

6.2

2012

8.0

1980

6.9

2020

6.1

1939

7.1

1993

7.5

1976

5.9

2020

7.0

1982

5.8

2017

6.1

2016

6.7