In the largest income category - earning $30,000 to $50,000 a year - there were 49 tenants.
That compares with 84 percent of whites in the income category, up 3.7 percentage points over the period.
Tax cuts were much deeper, and affected far more money, for families in the highest income categories.
The owners can sell only to buyers within the applicable income category, and the price that may be asked is limited.
When you enter a deposit, it knows enough to propose an income category rather than one for expenses.
A key component of the income category - wages and salaries - rose $17.4 billion, up from $600 million the previous month.
The revised plan updates the city's definitions of such income categories.
But the report also gave Republicans support for their contention that tax reduction had brought some benefit to people in almost all income categories.
People in the very top income categories fared better by almost any measure, according to the report.
That is 0.5 kids more than the upper-middle-class average and the same number as the lowest census income category.