1996

5.4

1997

5.0

1999

4.7

2000

0.0

2021

5.0

2011

6.4

2007

8.2

1993

7.0

2009

7.1

1982

4.2

2005

5.1

2003

8.4

2004

7.0

1982

6.0

2019

6.6

1992

4.8

1983

5.8

1985

0.0

2014

5.8

2013

4.6