activity in Buenos Aires has historically been among the most dramatic indicators of national economic fortunes (see table at right), and since 2006 around 3 million m² (32 million ft²) of construction has been authorized annually. The Port of Buenos Aires handles over 11 million revenue tons annually, and Dock Sud, just south of the city proper, handles another 17 million metric tons.
To the west of Buenos Aires is the Pampa Húmeda, the most productive agricultural region of Argentina produces wheat, soybeans and corn (as opposed to the dry southern Pampa, mostly used for cattle farming and more recently production of premium Buenos Aires wines). Meat, dairy, grain, tobacco, wool and leather products are processed or manufactured in the Buenos Aires metro area. Other leading industries are automobile manufacturing, oil refining, metalworking, machine building and the production of textiles, chemicals, clothing and beverages.
The city's budget, per Mayor Macri's 2011 proposal, will include US$5.9 billion in revenues and US$6.3 billion in expenditures. The city relies on local income and capital gains taxes for 61% of its revenues, while federal revenue sharing will contribute 11%, property taxes, 9%, and vehicle taxes, 6%. Other revenues include user fees, fines and gambling duties. The city devotes 26% of its budget to education, 22% for health, 17% for public servicesand infrastructure, 16% for social welfare and culture, 12% in administrative costs and 4% for law enforcement. Buenos Aires maintains low debt levels and its service requires less than 3% of the budget
