2015

8.4

1993

5.5

2016

6.7

2014

4.5

2002

10.0

2002

9.1

2012

6.0

2013

7.6

2006

7.4

2003

5.8

1971

6.8

2011

5.6

2000

7.4

5.7

2020

5.8

2007

10.0

2023

8.0

1989

7.9

2017

6.5

2005

6.9