2002

7.6

2006

0.0

1999

7.7

1998

7.1

2001

7.4

2004

6.0

2017

9.5

1975

8.0

2006

0.0

1987

6.4

2003

7.3

1997

6.3

1982

6.2

2025

6.6

1979

3.7

1985

6.9

1993

8.3

1997

5.7

1990

7.9

2013

5.0