2013

6.4

2004

5.1

2015

5.4

2020

6.4

2014

6.7

1967

6.9

1978

6.1

2016

6.3

2024

3.0

2025

2.5

2000

2.7

1995

6.0

2019

8.0

2006

4.5

1981

5.2

1987

5.1

2005

7.0

2000

4.6

2009

6.1

2010

5.6