2004

5.3

1973

3.7

1996

7.0

2012

6.0

2006

6.2

2018

2.3

1966

2.5

2003

6.6

1991

4.7

2007

6.4

2006

6.3

2001

7.4

1991

5.9

1993

5.3

2013

0.0

1970

3.8

2010

5.1

2000

4.6

1978

5.9

1975

7.5