2006

8.3

2015

7.9

2021

7.1

1999

6.7

1996

7.8

2020

7.3

2016

7.6

2020

8.1

2011

8.0

2001

5.6

1965

7.8

2006

6.7

2015

8.4

2009

9.0

2024

4.0

1985

7.4

2005

4.8

2004

7.8

2003

7.2

2012

8.6