One source, complete volumetric product data.
Going beyond "if" and "when," GfK MRI's Survey of the American Consumer reports on "how much" and "how many" for thousands of products and hundreds of brands.
UNIT CONSUMPTION VOLUMETRICS
Most of the products and brands measured in the Survey yield the usage information required by volumetric analysis. Data are collected in two ways, usage within a 6 or 12-month time period, and the number of times used in a shorter period of time.
EXPENDITURES VOLUMETRICS
Shopping
Weekly grocery shopping, convenience stores, service stores (barber, cleaners, florist, etc.), in-home shopping
Personal Items
Perfume and cologne, health and beauty aids, prescription medicine
Automotive
Current vehicle(s), when purchased, gasoline, last 30 days
Travel
Luggage, domestic vacations, foreign vacations, traveler's checks
Apparel & Accessories
Total spending; women's, men's, sports clothing; shoes, athletic shoes; costume jewelry, fine jewelry, watches, writing instruments
House & Home
Bedding and bath goods, household furnishings, personal appliances, home remodeling services, climate control appliances, home improvements, paint/stain, property and garden maintenance
Home Electronics
Home computer systems, PDA and handheld computers, audio equipment, CD and DVD players, cam corders, TV's, mp3 players, video games and systems, software
Telephones
Cell phone bill, monthly average; personal long distance calls, monthly average; telephones and accessories
Recreation
Sports & recreation equipment; children's toys & games across five age groups