condition	mean	min	max
4 h after light	56.7	56.7	56.7
8 h after light	23.65	13.5	33.8
12 h after light	33.75	29.8	37.7
4 h after dark	39.25	18.8	59.7
8 h after dark	27.35	3.7	51.0
12 h after dark	21.3	7.0	35.6