condition	mean	min	max
4 h after light	13.031011	12.268482	13.79354
8 h after light	13.694454499999999	12.462817	14.926092
12 h after light	16.8332095	16.82266	16.843759
4 h after dark	20.7970175	20.019066	21.574969
8 h after dark	21.669387	18.673189	24.665585
12 h after dark	18.476876	18.476876	18.476876