An inquiry from Andrzej from Poland regarding sites that provide economic data for Mexico has prompted me to provide the following links.
The official and definitive source for Mexican statistics is INEGI (the National Statistics, Geography and Information Institute). There is one little glitch however, it’s only available in Spanish INEGI Instituto Nacional de Estadisticas, Geographia y Informacion.
Another source of economic information about Mexico can be found through contacting the Mexican Embassy or Mexican Consulate in your part of the world. The Economic or Commercial Officer will be able to provide the information you are seeking. Mexican Embassies and Mexican Consulates worldwide.