2009

5.7

2000

5.0

2012

7.1

1985

5.3

1984

5.5

2007

7.4

2015

5.5

1993

3.8

1933

5.9

1990

5.0

2008

6.0

1956

4.2

1988

6.8

1998

6.4

1986

6.0

1953

5.6

2014

4.3

2001

7.0

2003

5.0

1976

6.0