1984

6.0

2003

5.8

1975

5.0

2022

4.6

1992

6.6

2002

6.8

2004

6.2

1998

5.4

2000

5.6

2001

5.3

1976

4.3

2002

2.8

1952

6.6

1996

6.8

1995

6.5

2020

6.6

2005

5.2

2008

4.9

1929

6.3

1953

7.1