2004

5.1

2019

4.6

2002

5.3

1983

6.7

1981

5.7

1980

5.2

1999

5.0

1992

7.1

2014

6.3

1995

4.5

1927

7.8

2006

5.4

1970

5.1

1969

7.5

2015

7.2

2016

4.9

1932

6.5

1997

5.3

1921

6.8

2010

7.5