condition	mean	min	max
4 h after light	14.9	14.9	14.9
8 h after light	79.1	67.1	91.1
12 h after light	22.1	18.6	25.6
4 h after dark	56.45	47.2	65.7
8 h after dark	49.55	42.7	56.4
12 h after dark	19.65	7.5	31.8