2004

6.5

1995

5.9

2012

5.5

2005

6.5

2004

6.3

2017

4.9

2001

6.2

2002

6.1

2007

6.4

2009

7.7

1982

5.2

2000

6.6

2011

9.7

2013

8.1

2007

7.3

1895

6.8

2009

5.3

2017

6.6

2002

6.9