1994

7.3

1996

6.4

2002

7.1

1987

7.0

2001

5.8

1945

6.9

1969

7.0

1986

5.6

2022

6.3

2008

6.3

2023

5.9

2007

6.8

1993

5.3

1965

7.7

1984

7.5

2008

5.8

1966

7.5

2001

6.1

1954

7.2

1999

6.8