[mynegation]

Depends on how you define "pricing pressure". By the similar calculation the average COGS per unit in 2011, 2012, and 2013 is $97.11, $128.67, $162.07 respectively. It grows faster than the revenue per unit. Which may mean upward price pressure from suppliers, downward price pressure from consumers, or both.

[kcg]

Yes. I took the question as asking whether absolute revenue per unit was going down or absolute COGS per unit was going up (or both).

Obviously there are different perspectives from which we can look at absolute and relative pricing pressure, and with everything in finance it depends on definitions.