2014

7.1

2006

6.6

2018

8.3

2021

6.8

1978

5.9

2019

7.7

2012

8.0

2021

6.7

2002

4.5

2014

6.7

2009

7.3

1999

6.5

2019

6.0

2011

7.2

2020

7.4

2017

6.3

1994

7.5

2008

8.1

2003

6.7

1989

7.8