2003

6.3

2013

7.1

1993

4.3

2015

4.9

2005

6.4

2011

5.2

2014

6.5

1983

7.9

2002

6.5

2023

7.4

2016

6.7

2013

4.4

2017

4.6

2005

5.3

2011

7.5

2007

6.1

2021

8.3

1994

4.7