2005

4.5

1975

7.3

1996

7.9

1976

4.9

2014

10.0

2002

7.1

2002

6.7

2004

5.8

2008

5.7

1997

6.0

2021

0.0

1994

6.8

1995

6.3

1992

6.4

2010

5.8

2005

6.2

2017

4.0

2007

6.2

2000

4.7

2000

6.8