In what year was the album “蒋公爵漂流记” released by 蒋蒋?

In what year was the album “蒋公爵漂流记” released by 蒋蒋?: The album “蒋公爵漂流记” was released in 2015 by 蒋蒋, featuring 10 tracks.
What is the most successful song from the album “蒋公爵漂流记” by 蒋蒋?: “落花雨” is the biggest hit from the album “蒋公爵漂流记” by 蒋蒋.

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