this seems to be a report on testing of 5 samples against what is the standard rating for that type of transistor. they tested breakdown voltages across junctions at low current, so as to prevent damage. They also seem to be testing leakage currents, and HFE. So this appears a test of 5 samples to verify the transistors as being acceptable. Nothing here to me points to an important item except HFE in my opinion. , but as you can see, most transistors in both sample tests look very similar except the 5th transistor in the first sample. Its HFE is a lot higher than the others, and its ICBO current is also a lot higher than the others. Its not that it is bad, but I wouldn't pair it with the others, as I always try to match transistor parameters as best as possible.