2007

5.0

1995

5.9

2006

6.7

1985

6.7

2000

5.0

1982

7.7

1999

5.1

2013

6.2

2016

6.1

5.4

1932

7.4

1982

6.1

2010

6.7

1975

7.3

2014

6.5

1981

6.9

2013

6.9

1989

7.1

1981

7.2

2014

7.6