condition	mean	min	max
4 h after light	7.9	7.9	7.9
8 h after light	19.5	10.9	28.1
12 h after light	31.4	29.9	32.9
4 h after dark	49.75	28.2	71.3
8 h after dark	35.0	26.8	43.2
12 h after dark	41.95	24.9	59.0