condition	mean	min	max
4 h after light	6.1	6.1	6.1
8 h after light	10.8	7.3	14.3
12 h after light	34.4	26.8	42.0
4 h after dark	35.0	22.3	47.7
8 h after dark	21.75	19.9	23.6
12 h after dark	54.0	54.0	54.0