condition	mean	min	max
4 h after light	15.58075	15.0123	16.1492
8 h after light	9.713985000000001	7.29947	12.1285
12 h after light	12.2405	11.911	12.57
4 h after dark	18.7885	18.083	19.6977
8 h after dark	27.384266666666665	24.9506	29.7323
12 h after dark	20.897033333333333	19.3597	21.9978