2009

5.9

2017

6.0

1993

7.1

1994

5.1

2006

6.2

2011

5.6

2004

7.6

2002

2.3

1992

8.5

1993

6.8

2001

1.7

2015

7.9

2015

6.9

2000

7.3

2004

6.9

2012

5.8