1994

8.0

1982

7.6

1999

0.0

1994

7.8

2007

7.3

1996

6.9

1979

6.8

1992

5.9

2002

7.9

1995

5.4

2007

7.6

1989

8.3

1987

8.4

1995

7.8

1998

4.6

2011

6.6

1993

6.7

2003

4.5

1992

6.1

1992

6.3

2002

7.3