condition	mean	min	max
4 h after light	14.075196666666667	9.04399	18.9068
8 h after light	10.960973333333333	2.67612	19.7347
12 h after light	12.39069	7.86497	17.8492
4 h after dark	20.7811	17.6649	22.8699
8 h after dark	18.98753333333333	12.486	25.6287
12 h after dark	16.9638	13.9235	19.6565