condition	mean	min	max
4 h after light	1267.6	1267.6	1267.6
8 h after light	1200.8	1159.6	1242.0
12 h after light	1133.95	1103.4	1164.5
4 h after dark	1247.75	1246.3	1249.2
8 h after dark	1248.35	1228.3	1268.4
12 h after dark	1162.15	1084.6	1239.7