The data were compiled by the Billboard chart and research department with information from 70 Spanish-language radio stations in the United States and Puerto Rico.
[3] However, in the listings included in the first printed publication of the chart on October 4, 1986, the first number-one song was "Yo No Sé Qué Me Pasó" by Mexican singer-songwriter Juan Gabriel.
[1] By the end of that year, another of Gabriel's compositions, "De Mí Enamórate", sung by Daniela Romo, also reached number one.
[4] Also in 1986, two Spanish versions of the Italian song "Tutta la vita", performed by Franco and Emmanuel succeeded one another at the top of the chart.
[5] Two songs recorded by Spanish singer Julio Iglesias peaked at number one, "Lo Mejor de Tu Vida" and "Que No Se Rompa la Noche".