condition	mean	min	max
4 h after light	17.87966	15.606679999999999	19.28981
8 h after light	9.816967333333332	4.217442	13.6421
12 h after light	14.655893333333333	11.68304	17.86816
16 h after light	11.896831666666667	8.595815	14.792110000000001
4 h after dark	18.443060000000003	16.24719	22.269820000000003
8 h after dark	17.728416666666664	16.259439999999998	19.07281