1953

6.1

1984

5.8

1945

6.7

1997

6.1

1993

6.0

1992

5.4

1942

5.4

2003

6.6

2016

6.3

1995

6.6

2008

6.0

1989

6.3

1994

6.2

2023

6.4

2009

6.5

1980

6.8

2009

7.1

1993

5.1

1999

6.2

1970

7.1