2009

6.2

1998

6.8

1980

6.5

1991

6.1

2016

4.2

1993

4.5

1971

7.2

1989

7.2

1997

5.6

1996

5.4

1988

5.2

1988

5.8

2002

6.3

1990

5.5

1972

6.0

2022

7.2

2016

6.0

2022

7.7

2008

6.1

1940

4.3