2003

4.9

2015

6.2

2013

8.0

2011

7.5

1982

7.1

2015

5.3

1989

7.9

2024

8.8

2008

7.6

2019

6.7

2017

7.0

1998

8.6

2005

8.9

2011

7.6

2014

7.7

2017

8.2

2016

6.9

2018

7.2

1965

6.0