The number of such businesses has declined about 15 percent in the last decade, according to the report.
The state's white population declined, too, by about 8 percent over the decade.
Its reported sales have declined about 40 percent since 2000, to less than $4 billion.
Their numbers have declined about 50 percent during the past decade, to 300.
Already, the American currency has declined about 40 percent in the last two years.
It has seen its orders decline about 40 percent from last year's level.
The index has declined about 30 percent since the beginning of this year.
Prices have declined about 10 percent since the height of the market in 1988.
Bank of Mexico officials said the controlled rate would continue to decline about 6 percent a month.
In fact, profits are expected to decline about 15 percent this year.