1995

0.0

2017

4.7

2008

5.9

2011

0.0

2006

6.8

1981

10.0

1999

6.0

1978

5.8

1985

8.1

2007

2.0

1986

6.2

1987

7.9

1979

0.0

2010

2.5

1965

7.0

1990

0.0

1989

1.0

1965

8.3

1978

0.0

1990

0.0