2005

7.6

1985

6.2

1993

5.6

1999

6.5

1990

5.7

1936

0.0

2007

6.2

1940

5.5

1978

5.0

1979

5.8

1939

6.0

2015

6.5

2008

6.8

2016

5.8

2004

8.0

1994

8.3

2003

6.4

1967

7.6

2006

5.2

1982

6.4