condition	mean	min	max
4 h after light	21.7990715	18.467813	25.13033
8 h after light	19.791438	18.040609	21.542267
12 h after light	21.8268555	18.419133	25.234578
4 h after dark	21.513410999999998	19.501858	23.524964
8 h after dark	23.131716	19.670303	26.593129
12 h after dark	16.43032	16.43032	16.43032