condition	mean	min	max
4 h after light	17.53145	17.4111	17.6518
8 h after light	16.5594	14.507	18.6118
12 h after light	16.473300000000002	15.5156	17.431
4 h after dark	17.8721	17.3905	18.3537
8 h after dark	20.035600000000002	18.9115	21.1597
12 h after dark	19.45975	19.4343	19.4852