2005

6.4

1968

5.4

1993

4.2

2002

6.3

1994

5.7

1991

4.8

1997

7.6

1984

6.5

2021

3.0

1983

5.9

2008

6.8

1992

4.9

2017

6.7

1979

4.9

2020

3.5

1960

6.2

2023

0.0

2003

3.8

1933

3.0

1971

6.3