2004

7.3

2014

8.4

1978

6.8

2007

7.5

1999

7.1

1980

7.2

1984

7.5

1977

5.0

2003

6.6

2012

6.7

1956

3.9

1966

6.2

1938

6.0

1930

6.3

1996

6.6

1997

6.5

1977

6.9

2017

7.5

2024

6.8

2019

8.4