1892

4.7

1892

3.7

1903

6.3

2013

7.5

2005

6.8

1969

6.4

2006

5.8

2008

6.5

1983

7.6

2014

7.4

2014

5.0

1980

6.7

1995

6.1

1996

6.9

2005

6.7

1951

6.8

1971

7.1

1953

7.2

1934

5.4

1930

5.2