condition	mean	min	max
4 h after light	15.6434705	15.169272	16.117669
8 h after light	20.570740999999998	16.035219	25.106263
12 h after light	13.6150245	12.250223	14.979826
4 h after dark	15.8147935	14.636383	16.993204
8 h after dark	16.165851	14.549466	17.782236
12 h after dark	14.203105	14.203105	14.203105