1996

5.7

2003

6.5

2004

7.4

1979

7.1

2009

4.5

2018

5.0

2005

7.3

2003

7.0

2003

5.9

2005

7.0

2023

6.7

2001

5.5

2016

6.4

1986

7.4

2013

6.0

1996

6.3

1998

6.3

2006

6.4

2016

6.4

2020

6.2