1985

7.0

2013

5.8

2016

8.2

2019

7.1

2009

7.4

1987

7.3

2019

7.4

2016

7.0

2015

6.8

1992

8.1

1994

8.7

2010

7.7

2022

7.6

2016

8.2

2005

6.7

1996

7.9

2006

7.8

2021

8.1

2016

7.6

1997

7.9