1999

6.5

2006

6.9

1996

8.0

2013

0.0

1981

5.5

1993

3.3

1987

0.0

2004

8.6

1979

6.9

1992

5.9

1995

7.8

2023

6.3

1993

7.1

2001

8.0

1987

8.4

2011

4.8

1993

4.3

2012

7.1

1999

8.3

1995

6.5

2002

7.2