2006

7.7

2003

7.9

1998

7.2

2024

5.6

1996

5.4

2014

7.3

2004

8.3

2017

6.4

2019

6.7

1999

7.6

2004

8.6

2017

7.2

2009

7.4

1988

6.5

2017

7.0

2013

7.1

2016

7.6

1992

5.8

2013

7.5

2012

6.5