condition	mean	min	max
0 h after light	17.3191	17.0234	17.6148
4 h after light	10.28584	9.94358	10.6281
8 h after light	9.700165	9.42245	9.97788
4 h after dark	13.8688	13.0937	14.6439
8 h after dark	15.9141	14.9561	16.8721
12 h after dark	15.675	14.1038	17.2462