2006

6.7

2000

6.3

1979

6.1

2015

0.0

0.0

2012

1.0

1971

7.4

1993

6.2

1997

6.6

2017

3.7

2004

5.8

2020

6.0

2008

2.7

2025

6.4

2014

8.3

1992

4.0

2006

5.5

2006

6.2

1988

6.6

2005

5.5