condition	mean	min	max
4 h after light	30.7	30.7	30.7
8 h after light	54.4	48.4	60.4
12 h after light	39.2	31.0	47.4
4 h after dark	47.0	42.9	51.1
8 h after dark	39.9	27.9	51.9
12 h after dark	21.2	6.9	35.5