Time of the last usage Have used it ever Within the last 3 months Between 3 months and a year ago More than 1 year ago
2006 56.8 52.1 1.5 3.2
2007 62.1 58.0 1.7 2.4
2008 67.6 62.5 2.2 2.9
2009 66.9 61.9 2.2 2.8
2010 69.6 63.3 3.1 3.2
2011 73.3 68.7 2.2 2.4
2012 75.6 71.5 1.8 2.2
2013 76.6 73.0 1.6 2.1
2014 78.9 76.0 1.2 1.8
2015 80.0 72.3 3.0 4.7
2016 .. .. .. ..
2017 82.9 74.6 2.8 5.6
2018 .. .. .. ..

Footnotes

*
Data weighted and grossed up on the basis of the 2011 population census.
.