1989

3.2

2000

6.2

1989

2.0

2000

4.2

2018

6.5

1992

8.0

1998

6.6

1983

5.2

2002

0.0

1976

5.5

1990

4.0

2013

6.3

1998

7.6

1986

5.5

1986

5.2