1996

6.5

2003

6.3

2010

7.9

2000

5.5

2016

6.7

2005

5.1

1987

7.4

2015

5.2

2022

7.8

2008

6.7

1984

6.6

2021

6.1

2013

6.0

2006

7.5

2016

7.6

2014

7.7

1999

7.6

2015

6.5

2001

6.9

2010

6.8