2005

0.0

1999

4.8

1996

6.5

2004

7.2

1998

6.8

1995

5.8

2007

2.0

1991

0.0

1989

7.1

2015

5.0

1978

0.0

1992

7.0

1986

6.4

1983

6.2

1984

6.0

1992

5.3

2001

5.5

2005

5.5

1988

4.7

1986

0.0

2022

5.9