condition	mean	min	max
4 h after light	12.15719	9.34948	14.9649
8 h after light	8.17367	6.98242	9.36492
12 h after light	12.1003	11.8064	12.3942
4 h after dark	16.489766666666668	14.4334	17.954
8 h after dark	20.4462	19.621	21.6231
12 h after dark	14.1944	13.5442	15.4083