2001

6.2

2001

6.7

2003

7.4

2002

6.6

1991

7.3

1999

7.4

2004

6.4

1992

5.8

1996

6.4

1994

4.5

1988

8.0

2017

6.1

2013

5.2

2001

0.0

1987

5.3

2003

5.9

2012

1.0

2002

7.0

2000

6.3

2005

7.0