1938

6.0

1978

7.2

2020

7.6

1946

6.5

2006

7.4

1947

7.1

1980

5.5

1999

6.7

2021

7.1

1985

6.5

2019

7.0

2009

6.2

1980

6.0

1991

6.4

2008

7.3

1999

7.4

2004

6.6

1994

6.8

1997

6.6

2001

6.8