2010

5.6

2014

5.4

2012

6.7

2015

8.0

2000

6.4

1993

6.3

2025

7.2

2004

7.1

2010

7.1

2001

6.8

2005

5.2

2017

4.2

2010

7.0

2003

5.8

1957

7.2

2001

6.1

1986

6.8

1998

6.3

2012

4.5

2009

5.6