1983

7.3

1982

7.4

2006

5.0

2006

10.0

2003

6.5

2000

6.9

2001

6.7

2008

6.1

2002

3.9

2019

7.7

2006

0.0

1996

6.6

2004

7.0

1962

7.0

1999

9.0

2017

5.8

2010

5.2

2011

7.0

2006

5.9

2003

6.2