condition	mean	min	max
4 h after light	1239.46	1225.4	1253.52
8 h after light	1264.435	1251.78	1277.09
12 h after light	1226.32	1198.82	1253.82
4 h after dark	1157.305	1073.17	1241.44
8 h after dark	1285.1	1251.86	1318.34
12 h after dark	1322.24	1290.97	1353.51