1994

7.2

2005

7.7

1985

5.0

2006

6.7

1984

7.4

2007

6.5

1982

3.5

1987

5.0

2014

7.0

2004

7.7

2003

7.3

2008

6.8

1999

0.0

2009

7.1

1996

6.1

1992

6.0

2007

7.5

1999

7.9

2000

7.5

1991

3.9