condition	mean	min	max
4 h after light	22.91635	22.6038	23.2289
8 h after light	13.83825	13.3208	14.3557
12 h after light	6.074335	5.49862	6.65005
4 h after dark	7.306316666666667	7.09072	7.57921
8 h after dark	11.7309	11.4767	11.9883
12 h after dark	21.109933333333334	19.7723	21.8937