2008

4.8

2024

6.8

2018

5.9

2015

0.0

2006

2.0

2010

5.5

2009

7.5

1968

6.2

2007

6.5

2000

6.3

1997

6.1

1998

4.4

1996

7.1

0.0

1999

4.9

1992

6.7

1998

6.3

2002

5.8

1991

6.5

1998

5.6