1986

6.2

2013

6.6

1933

6.2

1987

5.3

1949

6.2

2017

6.6

2001

6.8

5.7

1988

6.2

2014

6.7

2014

5.9

1966

6.1

1980

6.6

1999

5.9

2003

5.7

1963

7.0

2013

6.2

2012

8.2