As of 2009[update], the Wayback Machine contained approximately three petabytes of data and was growing at a rate of 100 terabytes each month; the growth rate reported in 2003 was 12 terabytes/month. The data is stored on PetaBox rack systems manufactured by Capricorn Technologies.
As of 2003, what was the rate of increase in the amount of data recorded by the Wayback Machine?
12 terabytes/month