On the theory that order rates (which would be nice to know) are
roughly correlated with forum join rates, I used the available raw data at
http://www.element14.com/community/groups/raspberry-pi?view=members
and counted how many pages of members, at 50 members per page,
have joined per week. I used Wednesday as the starting day of each
week, since the forum started on Wednesday, Feb 29.
There are at the moment 5587 members, which makes 112 pages,
with the following distribution by my count, modulo rounding errors.
The first column is the week starting date, the next is the number of
pages (at 50 members/page), the third is the page count times 50.
The last week isn't a full week.
feb 29 71 3550
mar 07 8 400
mar 14 5 250
mar 21 5 250
mar 28 6 300
apr 04 3 150
apr 11 6 300
apr 18 4 200
apr 25 4 200
I speculate that for every forum member, there have been about 20 Farnell orders,
based on 100,000+ orders for 5000+ members.