1990

7.8

2013

7.2

1993

5.1

2001

8.2

2012

7.0

2021

7.6

1966

6.1

2006

7.8

2016

10.0

2017

7.9

2017

7.7

1985

6.0

2004

4.2

2003

7.8

2005

7.9

2008

5.0

2020

6.6

9.0

1993

3.8

1987

6.9