2005

6.4

2013

5.3

2001

6.7

2005

7.0

2014

6.9

2014

5.8

2013

6.4

2010

0.0

2016

6.2

2019

6.2

1967

2.8

2008

1.3

2000

6.3

2013

4.7

1999

7.1

2001

7.7

1993

6.7

2006

7.1

1999

5.4

1967

0.0