2013

9.0

2021

6.2

1975

4.5

2007

5.4

2014

6.4

2003

8.2

2006

7.0

1993

5.5

2014

5.6

2003

5.7

1998

6.2

1976

5.9

1959

4.1

2012

6.0

2014

6.0

5.0

2015

5.5

2011

6.2

1996

9.5