condition	mean	min	max
4 h after light	19.9763425	18.10834	21.844345
8 h after light	24.774756	18.701445	30.848067
12 h after light	23.749555	21.210351	26.288759
4 h after dark	20.8590395	17.487691	24.230388
8 h after dark	19.493557	18.930555	20.056559
12 h after dark	21.661906	21.661906	21.661906