condition	mean	min	max
4 h after light	39.3806	38.9223	39.8389
8 h after light	31.4968	31.1077	31.8859
12 h after light	22.700699999999998	22.1787	23.2227
4 h after dark	19.59955	18.8613	20.3378
8 h after dark	22.3547	21.8771	22.8323
12 h after dark	33.036	32.9694	33.1026