condition	mean	min	max
4 h after light	16.375448	13.652102	19.098794
8 h after light	18.5232005	16.881069	20.165332
12 h after light	18.393802	18.055041	18.732563
4 h after dark	15.119405	13.86238	16.37643
8 h after dark	14.399634500000001	13.679553	15.119716
12 h after dark	16.182502	16.182502	16.182502