Here is the list of all available LLLL.INs as of the scan done on October 17th, 2016.
Here are the stats:
Available: 244,998
CVCV Names Available: 0
VCVC Names Available: 7874
AAAB Names Available: 0
ABBB Names Available: 0
ABAB Names Available: 1
AABB Names Available: 0
ABBA Names Available: 26
CHIP Names Available: 1025
The trend graph is: