Average number of junk email messages per week, per cent of persons having received of junk email, in spring 2007

Referencing instructions:

Statistics: Use of information and communications technology by individuals [e-publication].
ISSN=2323-2854. 2007, Average number of junk email messages per week, per cent of persons having received of junk email, in spring 2007 . Helsinki: Statistics Finland [referred: 23.5.2013].
Access method: http://www.stat.fi/til/sutivi/2007/sutivi_2007_2007-09-28_kuv_013_en.html.