1999

8.5

2016

0.0

1995

7.7

1994

8.3

2020

5.0

2002

7.5

2020

0.0

1992

5.4

2005

7.6

2002

8.2

2006

6.1

2005

8.8

2000

6.2

2006

7.1

1992

7.1

1990

7.0

1999

7.6

1983

5.2

2005

5.0

1999

7.7