Substrat

#	Pack	Spec	DPS ▼
1	Poisonous Skitterer	Blood	5,341.8
2	Carrion Spinner	Blood	3,608.4
3	Vesperon	Blood	1,942.8
4	Archavon Warder	Blood	1,210.7
5	Crypt Guard	Blood	0.0

One row per trash pull, in damage over that pull's own time. There is no parse column here: a trash pack belongs to no ranking population, so no percentile exists to put in it.