What countries are on the list of approved tourist destinations for Chinese citizens?

I noticed this sentence in a recent New York Times article:

Since China put the European Union on its list of approved tourist destinations, the volume of Chinese sightseers to Europe has surged, with many taking advantage of more direct flights to shop and see the sights and to pour millions into staggering economies.

(Emphasis mine)

I had never heard of this list before, and I am now curious. What countries are on the list of approved tourist destinations for Chinese citizens? Googling this has only given me lists of tourist destinations within China.