condition	mean	min	max
4 h after light	17.51745	17.2543	17.7806
8 h after light	12.422699999999999	11.7791	13.0663
12 h after light	14.57325	13.3988	15.7477
4 h after dark	17.567733333333333	15.9733	19.0861
8 h after dark	17.452533333333335	16.8592	17.768
12 h after dark	20.471566666666668	17.7737	22.9179