1955

7.2

1984

7.1

1987

5.8

1955

5.6

1993

5.8

1989

6.7

2020

6.3

2017

6.2

1943

8.0

1986

5.6

1945

7.6

1966

7.3

2017

6.9

1890

4.9

1991

5.6

1998

6.1

2015

5.1

1928

7.8

1966

6.9

2018

6.0