1984

6.9

1998

7.7

1986

7.9

2005

6.7

2003

7.8

1979

6.6

2007

7.3

1948

7.7

2016

6.2

1962

8.0

1957

8.1

2008

6.3

2008

6.7

2004

6.3

1990

7.7

2007

5.8

2020

5.1

1992

6.9

2024

7.6

2019

6.4