condition	mean	min	max
4 h after light	17.3376355	13.855987	20.819284
8 h after light	20.6764105	19.018117	22.334704
12 h after light	24.8931525	17.967027	31.819278
4 h after dark	16.746577000000002	16.140712	17.352442
8 h after dark	17.0227815	15.996883	18.04868
12 h after dark	16.140712	16.140712	16.140712