At this point, the tournament was being held every four years starting from the 2007 edition. But Copa America has historically never followed a consistent tournament schedule. From 1987 until 2001, the event was hosted every two years in rotation by the 10 members of the confederation. From 2001 to 2007, however, it was changed to occurring every three years.
Even prior to 1987, the tournament oversaw a massively erratic schedule. Most tournaments were held every four years, but a handful were held every two years, every other year, and some back-to-back. From 1967 to 1975, there was an eight-year gap between editions.