condition	mean	min	max
4 h after light	16.895343	15.922385	17.868301
8 h after light	18.559475499999998	17.381353	19.737598
12 h after light	15.7759205	12.888331	18.66351
4 h after dark	16.5327355	16.147993	16.917478
8 h after dark	16.756788	14.810305	18.703271
12 h after dark	15.447419	15.447419	15.447419