1996

4.2

2008

6.2

1963

3.5

2012

5.3

2023

6.4

2002

4.8

1993

4.9

1987

5.8

1982

5.7

1986

4.8

1975

5.9

2021

5.5

1985

3.7

2018

5.3

2014

5.9

1968

4.0

1984

3.8

1976

4.9

1976

4.6

1992

6.7