condition	mean	min	max
4 h after light	10.5	10.5	10.5
8 h after light	24.7	17.9	31.5
12 h after light	18.0	13.9	22.1
4 h after dark	29.8	18.4	41.2
8 h after dark	32.95	26.8	39.1
12 h after dark	20.5	4.0	37.0