condition	mean	min	max
4 h after light	22.080129	21.988485	22.171773
8 h after light	17.8859695	16.997445	18.774494
12 h after light	20.515996	16.574322	24.45767
4 h after dark	13.073442	12.659343	13.487541
8 h after dark	14.5568	11.905369	17.208231
12 h after dark	38.373205	38.373205	38.373205