condition	mean	min	max
4 h after light	11.2	11.2	11.2
8 h after light	38.6	4.8	72.4
12 h after light	29.1	15.8	42.4
4 h after dark	12.6	11.6	13.6
8 h after dark	42.4	17.7	67.1
12 h after dark	15.7	15.2	16.2