condition	mean	min	max
4 h after light	19.7	19.7	19.7
8 h after light	32.55	21.1	44.0
12 h after light	35.95	24.1	47.8
4 h after dark	16.55	4.0	29.1
8 h after dark	19.05	4.5	33.6
12 h after dark	18.55	5.8	31.3