2006

5.7

2005

8.8

2000

6.2

1984

7.4

1987

7.9

1983

5.2

1987

7.1

2012

7.0

1999

7.7

2015

0.0

1995

7.7

1994

7.5

2003

7.4

2017

6.5

1999

7.7

1996

8.0

2001

8.0

2019

10.0

1978

6.8

2009

8.5