condition	mean	min	max
4 h after light	15.363	14.1082	16.6178
8 h after light	15.43215	15.0315	15.8328
12 h after light	17.099449999999997	14.2868	19.9121
4 h after dark	20.1479	17.9745	22.0981
8 h after dark	20.13083333333333	18.7885	21.4127
12 h after dark	19.4493	16.3651	25.4306