2008

7.0

2014

5.8

1969

8.3

1986

6.4

2010

5.0

2011

9.7

1971

6.8

1978

8.0

1950

7.5

2009

5.6

2019

5.9

2020

6.5

1970

4.9

1972

6.7

1959

8.1

1936

6.2

1980

7.0

2021

9.3

1962

7.9

2001

7.2