condition	mean	min	max
0 h after light	18.92495	15.6283	22.2216
4 h after light	17.6961	16.8998	18.4924
8 h after light	17.2103	16.4593	17.9613
4 h after dark	17.6093	16.4038	18.8148
8 h after dark	21.444200000000002	20.357	22.5314
12 h after dark	15.97915	11.8199	20.1384