1982

7.2

2014

5.0

2013

5.5

2025

7.0

2009

5.4

2020

0.0

2001

7.6

2007

6.7

2017

3.9

1998

0.0

2016

3.5

1977

6.3

2000

6.4

2003

5.7

2006

5.5

2025

3.8

1963

7.1

2002

5.6

1998

7.7

1985

6.2