2013

7.5

2016

7.0

2017

6.3

2004

7.3

2024

8.1

2006

8.2

2013

7.9

2000

7.6

1997

7.5

1986

5.4

2014

8.3

2003

7.8

1976

7.5

2013

6.4

2007

7.7

1984

7.4

2001

7.2

2012

8.0

2018

6.7

2025

10.0