What is the size of the home interior paint market in the USA, in terms of revenue?

By my data (I do marketing research for an advertising firm with a
paint/hardware retailer client), shows that the total aggregate sales
for architectural coatings in 2001 was $6,744,300,000, of which 60.8%
(or approximately $4,100,534,400) was in interior paint/coatings.  If
you want some really comprehensive articles on the paint market, check
out www.pcimag.com, that is where I get a lot of my info.