1992

6.9

1982

9.2

2011

7.5

2016

7.0

2012

6.3

2001

7.8

1999

7.5

1969

8.2

2015

8.2

2006

7.0

1994

7.4

2008

8.3

2016

7.1

2015

6.2

2024

4.0

2013

7.8

2014

5.8

2017

7.6

2020

8.0

2023

6.0