"bob urz is a ****wit "
http://eetweb.com/lighting/incandescentlamps030510/
** That article is highly misleading bunk - appears it only covers the unit
SALES figures.
Impossible to say for sure as the article does not say.
If it IS for unit sales, one would expect the sales rate of a lamp that
lasts 5 to 10 times longer to be slower by that some amount. So, with 22%
of unit sales at present, CFLs likely represent over 50% of lamps in
service.
..... Phil