2020

0.0

1999

7.4

1981

7.0

2019

6.7

2007

4.5

2009

8.0

2008

5.9

2007

6.5

2014

4.9

1955

0.0

1956

5.6

2008

7.2

1955

7.4

1971

7.3

1993

6.3

1994

5.5

1995

6.4

1966

5.8

2016

7.0

2018

7.1