Cryogen Name	EMDB	PDB	sum
ETHANE	49628	31596	81224
ETHANE-PROPANE	3257	1487	4744
ETHANE-PROPANE MIXTURE	141	0	141
FREON 12	12	12	24
HELIUM	23	19	42
METHANE	19	16	35
n/a	2214	289	2503
NITROGEN	716	374	1090
NONE	815	0	815
OTHER	73	58	131
PROPANE	56	44	100