2002

6.8

1988

6.3

2005

5.3

2003

5.9

1970

0.0

2013

8.5

2001

7.3

1970

7.2

1964

7.1

2016

3.3

2005

4.0

1996

6.4

2007

5.0

1980

6.6

2009

6.6

2007

4.0

2003

5.4

2017

6.9

2007

3.3

2005

8.0