Caravans have formed every year since, though over time, they have grown both more frequent and smaller, in an effort to attract less attention.

The nationality of the people in the caravans has also shifted. In 2018, most people came from Central America. More recently, in a reflection of changing migration patterns, Venezuelans have made up the largest single group. People from other South American countries can be found, too. One woman in a recent caravan had carried her Bible from Peru.