SITE(S) LINE N MEANDIF MEDIANDIF STDEVDIF NWR - cal LT 84 -0.096 -0.078 0.160 FEF - cal LT 79 -0.178 -0.178 0.091 SPL - cal LT 82 -0.204 -0.203 0.090 HDP - cal LT 84 -0.119 -0.107 0.091