National Center for Electronic Recycling offers..

Per Capita Collection Index (PCCI)

The NCER has a created an electronics recycling index, known as the Per Capita Collection Index (PCCI) designed to measure changes in the amount of used electronic equipment, such as computers, televisions and monitors collected in representative programs across the United States.

Index formula:

IPC = [P1+P2+P3+P4+P5+P6]
6

P1 through P6 are the pounds per capita values of the six collection programs noted below. The index is stated as pounds collected per capita and will be re-calcuated each year. Although the numeric value of the index is noteworthy, the percentage increase from year to year is more indicative of changes in collection volumes.

The index is comprised of comprehensive collection programs collecting larger used consumer electronics such as televisions, monitors and computers.
The index value is rounded to one decimal place.
Per capita values are not adjusted to account variations of products across different collection programs.
The index is based on reported collection amounts from six programs:
State-wide programs in California, Maine and Delaware
A large municipal collection program (Hennepin County)
Two smaller municipal collection programs (Branford, CT and Frederick County, VA)
The per capita collection rate for each of these jurisdictions is averaged on an unweighted basis to calculate the national NCER Per Capita Collection Index. Specific calculations are included in the table below.

Program collection total population of area served LBs Per Capita 2009 LBs Per Capita 2008 LBs Per Capita 2007 LBs Per Capita 2006
California 162,004,676 36,961,664 4.4 5.9 5.0 3.5
Maine 7,912,292 1,318,301 6.0 4.0 3.5 3.0
Delaware 3,999,184 885,122 4.5 4.1 3.7 3.3
Hennepin County 5,735,624 1,156,212 5.0 4.7 4.8 4.0
Brandford, CT 152,009 28,969 5.2 5.0 4.4 4.8
Frederick County, VA 512,872 115,882 4.4 3.6 3.8 3.5
180,316,657 40,466,150 4.9 4.5 4.2 3.7

The NCER 2009 Collection Index increased 8% over 2008