1992

5.0

2021

7.8

2007

8.1

2003

7.3

2018

5.9

2009

4.7

1961

7.7

2008

5.7

1971

6.7

2001

6.1

1966

7.9

1966

7.7

1978

6.8

2020

6.9

2002

6.3

1984

6.4

1963

7.5

8.0

2000

6.4

2004

7.4