2003

3.8

1967

6.9

1997

7.6

2005

6.3

2015

5.4

2025

0.0

2004

5.1

2013

6.4

2014

6.7

2000

2.7

2023

6.7

1980

5.8

2021

6.3

1981

5.2

2024

0.0

2009

6.1

1969

5.5

2000

4.6

2010

5.6

2006

4.5