1984

7.5

2003

4.3

1981

4.9

2016

7.1

2004

5.3

1994

7.6

1996

6.2

1995

7.9

1995

8.6

1988

0.0

1998

5.2

2002

4.4

1985

7.7

1987

7.7

2003

8.2

1980

4.0

1985

6.6

1986

5.8

1986

4.2

1999

6.7

1992

6.5

1999

0.0

1985

7.3

2012

1.0

1988

6.3

2009

7.7

2001

5.7

2000

7.0

1995

0.0