1990

7.5

1972

6.4

1956

7.3

1999

7.6

2001

7.0

1927

8.1

2019

6.6

2007

6.1

1991

6.3

1990

6.7

2015

6.3

2020

6.3

1953

4.5

1993

6.9

2003

4.7

1975

6.7

2001

6.0

2011

9.7

1977

6.2

1985

6.4