Level 1 category	Counts	Percent
09100 Metabolism	130178	41.02%
09180 Brite Hierarchies	95904	30.22%
09120 Genetic Information Processing	25125	7.92%
09160 Human Diseases	18578	5.85%
09130 Environmental Information Processing	16423	5.18%
09150 Organismal Systems	10861	3.42%
09140 Cellular Processes	10739	3.38%
09190 Not Included in Pathway or Brite	9476	2.99%
Unassigned	36	< 1%