2018

7.1

2007

7.0

2005

6.6

2006

6.0

1979

7.3

2022

7.8

1976

6.7

1972

6.2

2013

5.9

2023

0.0

2015

8.5

2010

6.1

2015

7.7

2016

4.9

2016

6.3

2006

5.0

2010

7.7

2001

7.8

1997

6.0

2004

6.4