1999

0.0

1990

8.0

1988

5.3

2002

2.0

1996

5.5

1984

6.0

1973

3.1

1992

6.8

1995

5.8

2000

5.1

1997

3.5

2013

3.2

1988

0.0

2016

9.0

1980

4.3

2005

6.3

2020

0.0

1976

4.8

1966

7.7

2009

4.5