2017

6.1

2006

6.1

2003

6.5

1995

6.2

2006

2.0

2011

4.5

1991

4.1

1985

0.0

1965

0.0

1983

5.5

1982

7.5

1979

6.7

1992

0.0

1986

8.3

1989

7.9

2000

8.5

2009

7.5

1986

4.6

2018

0.0

2006

5.2

2006

5.4

1993

4.9

1997

5.7

1989

5.0

1983

7.5

1981

7.5

2016

3.8

2007

7.4

1980

1.0