2002

7.2

2004

7.4

2006

6.4

2005

6.6

1935

7.5

1920

7.9

1933

7.6

2016

0.0

2016

6.2

1997

5.2

1978

4.0

1991

5.0

1990

5.0

1992

4.2

1989

5.5

1990

6.0

1988

4.8

2014

6.0

1973

7.5