In what year was the album “Nolza - The First Japanese Mini Album” released by 2NE1?

In what year was the album “Nolza - The First Japanese Mini Album” released by 2NE1?: The album “Nolza - The First Japanese Mini Album” was released in 2011 by 2NE1, featuring 5 tracks.
What is the most successful song from the album “Nolza - The First Japanese Mini Album” by 2NE1?: “I Am The Best (Japanese)” is the biggest hit from the album “Nolza - The First Japanese Mini Album” by 2NE1.

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