1987

7.2

1985

2.0

2005

8.2

1990

6.6

1994

7.2

2017

8.2

2005

8.3

2004

7.9

1983

7.1

1999

0.0

1980

4.7

1979

6.9

1986

6.9

1981

7.6

2003

10.0

2003

6.4

1993

6.0

2005

3.6

2000

3.0

2002

6.7

2006

6.8

1987

8.4

1982

6.4

2018

6.8

1998

7.8

1982

6.1

2016

4.5

2013

7.5

1988

6.5

2005

7.0

2002

8.2

1993

8.4

1993

7.0

2008

6.7

1981

6.3