1949

6.5

1988

5.8

1951

5.5

1966

7.1

1982

6.1

1986

7.0

2022

7.1

1937

4.2

1989

4.7

1991

6.2

1953

5.9

2018

6.2

2007

2.6

1906

5.2

1969

6.7

2015

0.0

1985

4.0

1983

4.0

1980

5.3

1928

5.5