The subsidy that encouraged the Russians' purchase totaled $35 a ton, or about $1 a bushel.
The subsidies totaled 43 percent of Maseca's net revenues in 1994, or some $300 million.
This year's subsidies may total $1 billion, more than Mexico has spent on textbooks in the past decade.
In the second five years, subsidies would total $223 billion.
Since 1979, the subsidies administered by the bureau totaled more than $200 million.
The subsidy that the Housing Development Corporation provides has totaled $39.7 million so far.
The subsidies, which range from $150 to $200 a year, totaled $187 million last winter.
The subsidies total about $20 billion a year.
If used to pay off 25-year bonds, the subsidies could total $636 million.
The canceled subsidies totaled about $1.1 billion at the tourist exchange rate.