condition	mean	min	max
4 h after light	19.176187499999997	14.602362	23.750013
8 h after light	21.8321325	17.538302	26.125963
12 h after light	14.477361	13.871937	15.082785
4 h after dark	17.310083499999998	16.170648	18.449519
8 h after dark	21.656075	21.130275	22.181875
12 h after dark	14.04242	14.04242	14.04242