1983

4.3

2009

6.0

1987

6.8

1986

6.9

2000

8.2

1978

4.4

1989

6.5

1991

3.7

2018

6.5

2017

6.3

2018

6.3

2016

0.0

1984

6.9

1990

3.0

1995

7.0

2011

5.1

1994

6.5

2019

8.4

1985

0.0

1994

3.3

1972

8.0

1975

5.9

2015

0.0

1976

0.0