condition	mean	min	max
4 h after light	16.9570375	15.611694	18.302381
8 h after light	23.459490000000002	21.885831	25.033149
12 h after light	14.4545055	11.743286	17.165725
4 h after dark	17.6500585	17.326988	17.973129
8 h after dark	19.089487	17.392632	20.786342
12 h after dark	16.094023	16.094023	16.094023