as a political entity was abolished after the Mexican Revolution, with the municipality as the base of local government. The first municipal president was Alfonso Camacho who took office in 1917. No major battles were fought here during the Mexican Revolution but various of the factions passed through here given the state's location between the northern states and Mexico City. 20th century On 2 February 1916, the city was named the provisional capital of the country by President Venustiano Carranza on account of the Constituent Congress that was to convene there and that enacted the Political Constitution of the United Mexican States on 5 February the following year. This constitution still remains the law of the land. On 10 September 1996, the Legislature of Querétaro amended the state constitution to restore "Santiago de Querétaro" as the capital's official name. Climate Querétaro has a semi-arid climate (Köppen climate classification BSh) with mild temperatures year round, although the average high temperature in May is . Most of the precipitation falls from June to August. Economy Economic growth has been outstanding during the last decade. Today, Querétaro is a middle class city in terms of PPP GDP, with $20,000, The municipality of Querétaro was ranked 23rd in Mexico on the United Nations Index of Human Development. Querétaro debuted in 13th place in the 2006 rankings of the "Best Cities to do Business in Latin America" in América Economía, a leading economic magazine. In the 2007 rankings, it is considered the second best place in Mexico to do business, after Monterrey and the fifth best in Latin America, ahead of Miami in 6th place. The ranking takes into account variables such as telecommunications, innovation, quality of life, urban expansion, and crime statistics. In its 2007 survey entitled "Cities of the Future", FDI magazine ranked Querétaro as having the third highest cost effectiveness of all North American cities between 500,000 and two million people. In the overall classification of large cities, Querétaro was ranked sixth. Until the 1970s, agriculture had been the overwhelming basis of the economy of the municipality outside the city and commerce within it. Since then, the expansion of industry and the growth of the city, which started in the 1950s, have diminished the importance of agriculture and the land available for it. It now only employs .01% of the municipality's population. Major employers now are the industrial parks that surround the