Do model released images on Alamy make money???

I've been analysing the effectiveness of Alamy as a home for selling stock images with a particular interest in financial results against time invested. Alamy is not the obvious place for model released imagery, but as I wait patiently for images to emerge from the Getty quality control process, it's the only place I've got. By all accounts Getty will yield substantially better results, but that's still to be tested.

Shoot 1 - two models at smart location. Images posted mainly as RF.
Costs - a model commission on sales and/or exchange of other services
Date - two shortish days in September 2004 - say 10 hours shooting
Sales - 19
Income - Alamy gross $3,179 Me (before commissions payable) £1,112
Income per hour of shoot per annum - £30

Shoot 2 - spur of the moment shoot with model but very specific social/health issue subject matter. Images posted as L and RF.
Costs - a model commission on all sales
Date - January 2005 - 1 hour shooting
Sales - 5
Income - Alamy gross $629 - Me (before commissions payable) £220
Income per hour of shoot per annum - £88

Shoot 3 - model on location. Images posted mainly as RF.
Costs - a lunch plus model commission on all sales
Date - June 2006 - 3 hours shooting
Sales - 6
Income - Alamy gross $1492 - Me (before commissions payable) £519
Income per hour of shoot per annum - £86

Shoot 4 - 2 models on location
Costs - a lunch plus a hefty model commission on cumulative sales above £500
Date - November 2006 - 4 hours shooting
Sales - 8
Income - Alamy gross $699 - Me (before commissions payable) £245
Income per hour of shoot per annum - £40

The income figures do not look too bad here in terms of the time spent on the shoot itself. But the snag is that shoot time is rather less than the processing and submission time.

So what is "Income per hour of shoot per annum"? It's how much I have earned each year subsequently from an hour spent shooting. Before model commission. And ignoring all the set up and processing time. I ignore the first six months after the shoot when no cash comes in.

It's not huge bucks, but shows that money can be made from stock. Just on Alamy.

I've not included here some relatively aimless shooting I've done. Having good saleable subject matter is so important to generating income from stock photography. Which is why I've been suitably vague about the subject matter of these shoots.