condition	mean	min	max
4 h after light	53.9	53.9	53.9
8 h after light	10.75	10.6	10.9
12 h after light	13.75	13.1	14.4
4 h after dark	42.4	13.0	71.8
8 h after dark	47.0	11.2	82.8
12 h after dark	32.0	26.2	37.8