The Elliman data showed sales down 4 percent, to 4,570, compared with 4,781.
Other reports recently have shown increased sales of both new and existing houses.
Each could show rapidly growing sales over the previous two years.
The second royalty report, for the six months ending February 1, 1904, showed sales of 3,500.
Another report showed retail sales up in the third week of April.
The computer showed not only current sales but provided comparison with income of the same week during the previous five years.
The dotted line shows sales over this period last year.
Both the company's cigarette and food divisions showed strong sales, they said.
An informal survey showed sales up 5 to 8 percent from last year.
The international food business showed lower sales, but profits rose 5.1 percent, the company said.