With a population of about 126 million in 2019,[3] Mexico is the 10th most populated country in the world. It is the most populous Spanish-speaking country and the third-most populous in the Americas after the United States and Brazil.[4] Throughout most of the twentieth century Mexico's population was characterized by rapid growth. Although this tendency has been reversed and average annual population growth over the last five years was less than 1%, the demographic transition is still in progress, and Mexico still has a large cohort of youths.