2002

6.3

1993

5.3

2017

6.7

1992

4.9

2004

3.8

1998

5.8

1977

4.1

2008

6.8

1991

5.6

2011

5.0

1989

6.0

2015

4.6

2006

0.0

2009

6.0

2002

6.3

1979

7.6

1982

8.0

2007

5.4

2004

6.6

2002

6.7