2017

8.1

2017

6.3

2016

6.6

2014

7.0

1991

5.0

1972

7.9

1987

6.7

1950

7.7

1974

6.8

1995

7.3

2019

6.7

1955

6.5

1989

7.3

2016

7.1

2020

6.9

1965

6.8

2014

5.2

2004

7.6

1981

6.9

2017

5.2