2003

9.5

2001

6.7

1999

7.9

1991

6.8

2010

3.3

1992

6.8

1998

8.2

1982

7.6

2002

7.7

1994

8.4

1995

0.0

1992

8.0

1978

0.0

2005

7.0

1989

8.3

2015

7.8

2002

7.3

1993

8.1

1991

4.9

2018

7.0

2006

6.3

2000

5.3

2001

6.8