2008

5.1

2005

5.7

1990

6.5

2002

7.2

1987

7.1

2019

5.9

1943

6.2

1971

5.5

1964

6.1

1970

5.8

1973

3.1

1957

5.5

1966

4.3

1981

5.9

1931

7.5

2017

6.9

2012

6.8

2016

5.6

2021

2.0

1995

7.6