condition	mean	min	max
4 h after light	8.4	8.4	8.4
8 h after light	25.5	17.5	33.5
12 h after light	51.7	47.1	56.3
4 h after dark	88.4	81.6	95.2
8 h after dark	107.45	105.7	109.2
12 h after dark	52.9	41.9	63.9