2003

0.0

1988

4.0

1991

7.3

1993

6.1

2002

6.4

1999

5.7

2009

5.4

1998

6.2

2004

5.3

1992

4.0

2003

6.5

2020

8.0

2008

6.0

1976

7.2

2007

0.0

1998

4.2

2019

6.6

2005

0.0

1985

6.4

2014

5.8