2007

8.1

1992

6.8

1993

7.2

2018

10.0

2008

7.0

2003

7.1

1986

6.7

2011

8.4

2016

9.3

1977

7.3

2008

4.0

2003

7.8

1984

7.2

2002

7.3

1984

6.2

2000

5.2

2013

5.5

2008

0.0

2014

6.6

1983

7.1