1989

6.8

1983

0.0

2005

8.1

2004

0.0

1997

6.6

1999

0.0

1986

4.5

2002

8.5

2018

6.0

1994

5.3

2000

6.3

1996

3.0

2003

6.9

1978

5.0

1978

0.0