condition	mean	min	max
0 h after light	15.51735	15.1962	15.8385
4 h after light	18.13475	17.8265	18.443
8 h after light	28.08885	26.9709	29.2068
4 h after dark	28.666800000000002	28.0543	29.2793
8 h after dark	21.15005	20.9952	21.3049
12 h after dark	15.497399999999999	13.8782	17.1166