condition	mean	min	max
4 h after light	16.88615	15.003	18.7693
8 h after light	13.641449999999999	12.9934	14.2895
12 h after light	17.403399999999998	16.7027	18.1041
4 h after dark	22.84776666666667	20.9877	25.3031
8 h after dark	21.262166666666666	20.127	22.2204
12 h after dark	18.69063333333333	16.2979	20.0753