2016

4.2

2015

3.0

2003

6.2

2009

7.5

1995

6.5

2007

6.9

2000

5.8

2004

5.6

2004

3.8

2004

3.1

1992

4.9

1974

3.6

2017

1.0

2003

4.5

1996

7.7

2010

5.9

2007

7.4

2009

4.7

2024

5.8

2013

5.8