condition	mean	min	max
4 h after light	56.9	56.9	56.9
8 h after light	55.85	44.3	67.4
12 h after light	50.2	49.1	51.3
4 h after dark	43.3	38.6	48.0
8 h after dark	33.85	32.0	35.7
12 h after dark	26.45	20.1	32.8