2019

8.7

1975

7.1

2005

7.2

2011

8.5

1995

6.4

2018

7.3

1982

7.1

1995

8.6

2014

5.9

1990

7.9

1985

7.5

2002

8.6

2012

6.3

1994

6.8

2016

7.7

2010

6.9

2008

7.7

2015

6.7

2014

7.6

2021

8.0