SITE(S) LINE N MEANDIF MEDIANDIF STDEVDIF NWR - cal LT 91 0.132 0.150 0.135 FEF - cal LT 93 -0.049 -0.043 0.055 SPL - cal LT 93 -0.207 -0.214 0.111 HDP - cal LT 93 -0.102 -0.103 0.105 EFS - cal LT 93 -0.098 -0.112 0.113