"I don't care" N°1 en USA ("I don't care 1 in USA)

Gracias a Ines y Amba por la información.

Este ranking se mide de manera electrónica con más de 1.700 estaciones de radio, 24 horas al día, 7 días a la semana. Así es que esta semana, lo que más ha sonado en cuanto a rock por USA, ha sido "I don't care" de Apocalyptica. Felicidades para ellos.

English

Thanks to Ines, and Amba for this information

This chart was made from a Mediabase. Mediabase electronically monitors more than 1,700 radio stations in the top 150 U.S. metro markets, 24-hours-a-day, seven-days-a-week. Those radio stations are broken out into specific radio "panels," and included in the most appropriate "format" above. Songs moving downward for a pre-specified number of weeks are removed from the charts. All charts are based on radio spins, with the exception of Country which is points based. Mediabase is the leading radio monitoring service with broadcast companies in the US.

Congrats to Apocalyptica, you deserve this guys!