2012

0.0

2005

6.0

1986

6.9

2005

6.2

2008

3.8

2004

6.7

2002

6.4

2001

3.9

2013

4.5

2017

6.7

2016

9.3

2001

6.8

2000

6.2

2006

5.7

1947

7.3

1956

6.1

1952

7.3

2001

8.5

2008

6.8

1992

5.0