condition	mean	min	max
4 h after light	438.135	423.667	452.603
8 h after light	309.6625	307.128	312.197
12 h after light	391.933	389.468	394.398
4 h after dark	541.215	539.82	541.991
8 h after dark	564.8733333333333	563.479	566.654
12 h after dark	538.3566666666667	537.571	539.767