How many pairs of panda triplets are there in China? Where were they born? What are their names? Where are they ranked?

There are already four pairs of giant panda triplets in China. The first pair was born in 1999, and the third pair was born in 1999. At present, all three have returned to Panda Planet, the second pair is triplets born by Jiaozi 20 13, only three children are alive, and the third pair is Chang. The fourth pair of triplets born in Chongqing on 20 16 is only alive at present, and as of September 20 18, there are only four pairs.