It's not that simple.
First, this is an
average.
Secondly, as far as I know, processing times can
vary greatly depending on
each case and
the country one is applying from.
CIC
website used to show* the estimate average times
per country. Not anymore. What is showing on the website now is a
GLOBAL average, but differences persist because of different sized backlogs per country.
For example, when I applied in December 2016, the processing time was longer than 90 months. That doesn't mean that all applications took that long.
The government is trying to make things faster and more efficient by both making use of the online system and by having most of the processing done in Canada, not in local offices anymore.
*You can check an older version of the website here:
http://web.archive.org/web/20151220...a/english/information/times/perm/self-fed.asp
Once the backlog is dealt with, there should be a tendency of an actual average processing time for all countries.
Also, in the past years there have been several cases of Self Employed Visas granted in fewer than 12 months.
So, again, not that simple, bimboajayi.
I believe sharing individual process timelines is really interesting to illustrate what happens in specific cases.