2020

8.0

2023

7.4

2012

4.9

2001

6.3

2009

2.0

2007

8.2

1991

6.8

1980

5.8

1942

6.8

2012

8.2

2020

7.4

2016

6.9

5.6

1971

6.8

1953

6.1

1983

7.0

2023

6.5

2008

3.2