Sub-cluster Analysis:

C-130 [1251]  (#Grp: {8})

C-131 [62606]  (#Grp: {8, 9, 10})

C-132 [37187]  (#Grp: {8})

C-133 [37106]  (#Grp: {8})

C-134 [3447]  (#Grp: {9})

C-135 [10307]  (#Grp: {9})

C-153 [7426]  (#Grp: {9})

C-154 [4159]  (#Grp: {8, 9})

C-156 [63538]  (#Grp: {8, 9, 10, 11})

C-157 [106]  (#Grp: {9})

Spikey Created with Wolfram Mathematica 9.0