2003

7.7

2024

7.2

2017

6.6

2013

6.1

2006

6.1

2014

7.0

2004

6.4

2001

6.8

2009

5.9

2017

6.9

1980

5.9

2022

6.7

2018

6.5

2015

6.6

1953

4.8

1993

6.5

2012

5.3

1972

6.6

1986

6.2

2008

5.8