2007

7.8

2015

7.4

2014

5.6

2021

7.5

1961

7.7

1974

7.0

1980

6.8

2019

7.6

2006

6.4

2014

6.8

2021

7.7

2020

7.2

1934

6.5

1955

6.5

1962

7.2

2010

7.9

2003

6.8

2015

6.1

1969

5.9

1945

7.5