1999

6.5

2002

5.1

0.0

2013

3.5

2006

0.0

2001

7.2

2002

5.3

1994

6.2

1997

8.0

1998

3.3

1983

1.0

2016

3.0

2000

5.2

1994

7.1

1978

7.2

1999

5.2

1998

7.8

2003

4.2

1999

6.0

1995

7.1

2000

6.5