2002

5.6

2010

6.4

2023

6.2

2001

6.1

1965

6.0

2011

5.7

1988

7.0

2012

7.3

1974

7.0

1976

8.0

1998

5.9

2009

7.1

2022

5.8

1932

7.8

1984

6.3

2021

7.2

1994

5.8

1976

6.7

1986

5.6

1989

7.1