Working full time, a minimum wage worker brought home only $10,712 a year, nearly $6,000 below the poverty level for a family of three.
Most minimum wage workers do not come from poor families.
Between 1972 and 1980, the average monthly income of wage workers had fallen by 20%.
That means every low and minimum wage worker is a net loss.
Exploitation focuses on low wage workers and groups at home, especially minorities.
The valley's total bureaucracy, including state, central government and daily wage workers, is estimated at 350,000 people - about one in every 17 residents.
Higher wage workers pay a premium based on their salary.
Since low wage female workers were not a priority, very little effort was made to support them.
Most of them are farmers and daily wage workers.
Full-time and high wage workers are much more likely to have benefits, as the charts to the right indicates.