Devil May Cry 620,000
Devil May Cry 2 450,000
Devil May Cry 3 430,000
Devil May Cry HD Collection 80,000
All of that is Famitsu data.
As you can see, in Japan, though it never reached quite as high as the first game again, the series sold very consistently. Devil May Cry 3 and 4 have sold steadily, increasing their sales every year for six and four years, respectively. The original sold steadily for 3 years. Devil May Cry 2 is the abnormality for obvious reasons, as it only charted for the year it was released in.
Edited by JinTypeNoir at 16:33:16 23-01-2013