2016

6.6

1981

6.3

1999

7.6

1996

6.1

1980

6.2

1978

6.5

1992

7.0

1984

0.0

2011

7.2

1984

0.0

1996

6.7

1988

0.0

1989

6.5

1978

0.0

2001

5.2

2003

7.5

1983

5.6

1987

6.5

1994

4.5

1989

5.8

1988

6.0

1977

7.4

1988

8.1

1985

4.9