1993

7.4

2017

10.0

1983

6.5

2021

9.5

1989

6.9

2006

4.9

2003

6.3

2014

6.7

1996

7.2

1991

6.2

2008

0.0

2004

6.6

1930

0.0

2015

0.0

2004

5.6

1953

7.9

2004

7.2

1988

7.2

2001

6.0

1983

0.0