2003

7.9

1993

8.4

2012

6.8

2005

7.5

2005

8.1

1990

7.9

2009

7.6

2014

6.7

2004

6.3

2018

8.0

1999

7.9

2017

6.9

2020

7.6

2013

8.6

2015

7.4

1994

8.4

2015

6.9

1982

7.5

2006

7.5

2005

7.5