1990

7.1

1993

7.6

1966

7.8

2019

7.7

2013

7.3

2013

6.6

2015

8.2

1995

7.4

2006

7.1

2010

7.1

1970

5.8

2005

7.1

1996

7.0

2003

7.9

2020

7.0

2017

7.4

1997

7.5

2003

7.1

2011

0.0

2008

0.0