2003

7.3

1998

7.2

1994

8.5

2002

4.8

2013

6.1

2002

5.5

2006

7.0

2011

6.8

1994

5.0

0.0

2009

6.4

1988

7.7

2005

6.6

2002

7.0

1993

6.3

2014

8.2

2013

6.2

1991

7.3

1993

6.1

1995

7.6

1990

6.9