condition	mean	min	max
4 h after light	1593.1	1593.1	1593.1
8 h after light	1235.75	1233.1	1238.4
12 h after light	1133.45	1127.9	1139.0
4 h after dark	1147.7	1035.7	1259.7
8 h after dark	1218.6	1011.6	1425.6
12 h after dark	1274.35	1156.8	1391.9