Sub-cluster Analysis:

SC-026 [13470]  (#Grp: {6, 7})

SC-027 [59885]  (#Grp: {6, 7, 9})

SC-028 [3643]  (#Grp: {6, 7, 8, 9})

SC-029 [222194]  (#Grp: {6, 7, 8, 9, 10})

SC-030 [6010]  (#Grp: {8, 9, 10})

SC-031 [1430]  (#Grp: {8, 11})

Spikey Created with Wolfram Mathematica 9.0