Dramatic demographic changes are underway in Mexico, which has seen a massive reduction in fertility, from seven children per woman in 1965 to 2.5 per woman today. Still, the population is projected to reach 100 million next year and to continue to add about 1 million people a year over the next three decades. For the past 20 years, the Mexican economy has failed to keep up with its expanding population, causing at least 12 million people to go unemployed. Some 3.5 million Mexicans are expected to emigrate to the U.S. over the next decade to work and establish residency.