2005

7.1

2008

6.0

2016

6.9

1990

8.1

2013

8.6

1999

7.9

2009

6.1

2010

7.8

2003

7.8

2003

5.7

1994

7.2

2014

5.8

2007

8.3

2013

7.7

2002

7.7

1984

7.3

2007

7.4

2022

6.0

2019

7.1

2002

7.3