2013

10.0

2015

6.1

2009

5.5

1972

7.2

2004

6.2

1967

6.8

2011

5.2

1959

7.6

1969

5.1

2012

5.9

1967

5.3

2012

5.0

2003

6.1

1995

6.5

2000

7.0

1932

6.7

1995

7.3

1984

7.3

2014

6.0

1955

7.2