2008

5.7

2013

6.1

2000

6.7

2015

7.4

2023

6.2

2014

6.6

1997

6.3

1987

5.8

2012

6.2

1996

7.5

2009

7.3

2004

5.9

1982

4.4

2022

5.6

2022

6.2

2017

5.2

2013

5.8

2011

5.7

2017

6.1