condition	mean	min	max
4 h after light	7.22203	4.80377	10.1422
8 h after light	9.483403333333333	3.83291	13.8847
12 h after light	11.693633333333333	7.5581	13.8268
4 h after dark	15.4013	13.1506	18.3066
8 h after dark	11.559619999999999	8.14656	13.9103
12 h after dark	5.00334	2.8151	6.45202