2012

6.8

1988

6.0

2006

5.2

2008

8.1

2004

1.5

2016

8.5

2013

6.6

2011

7.4

2006

7.9

2018

10.0

2001

8.2

1997

8.3

2005

8.3

2000

5.4

1995

7.7

1996

7.1

1983

6.1

2013

7.0

2016

7.6

1999

4.3

1994

6.0

2015

6.7