1981

7.2

1995

6.2

1991

6.4

2008

7.5

2001

5.7

1983

6.7

2009

5.6

2024

10.0

2008

7.2

2016

5.3

1989

7.3

1938

7.3

2014

10.0

2024

0.0

1996

6.9

2008

5.3

1994

6.2

2008

5.5

1999

5.9

2010

6.0