Why "Popular Vote" could never be an accurate reflection of the will of all the voters in a primary ...

Twenty-seven states have held primary elections so far this year, with an average voter turnout overall of 13.2%.
Population in those states: 205,236,581
Democratic votes in those states: 27,069,866

Thirteen states have held caucus elections without a primary so far this year, with an average "voter" turnout overall of 2.4%.
Population in those states: 28,079,067
Democratic votes in those states: 677,509

The states with primaries outnumber the states with caucuses-only by 2 to 1. However, the votes counted in those states with primaries outnumber the votes counted in the states with caucuses-only by 5.5 to 1. That leaves 3,026,005 voters in the caucus-only states unaccounted for.

If an accurate "popular vote" is impossible, how could we know the will of all the voters? And unless these 3,026,005 could be counted in some way, the idea of an accurate "popular vote" is ridiculous.

Have a look for yourself, spreadsheet at this link:
http://www.box.net/shared/nfxf9w4sok