condition	mean	min	max
4 h after light	1267.1	1267.1	1267.1
8 h after light	1161.85	1063.7	1260.0
12 h after light	1202.5	1133.0	1272.0
4 h after dark	1261.0	1133.6	1388.4
8 h after dark	1521.8	1326.8	1716.8
12 h after dark	1334.75	1252.5	1417.0