condition	mean	min	max
0 h after light	14.2157	13.8354	14.596
4 h after light	8.475745	7.84045	9.11104
8 h after light	15.94765	15.4583	16.437
4 h after dark	28.44685	28.2692	28.6245
8 h after dark	22.42315	21.8131	23.0332
12 h after dark	16.99335	16.4854	17.5013