In what year was the album “Качели” released by Centr?

In what year was the album “Качели” released by Centr?: The album “Качели” was released in 2007 by Centr, featuring 16 tracks.
What is the most successful song from the album “Качели” by Centr?: “Интро” is the biggest hit from the album “Качели” by Centr.

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