condition	mean	min	max
4 h after light	12.627033333333333	11.1937	13.8244
8 h after light	4.169013333333333	1.53479	6.9451
12 h after light	2.5697900000000002	1.75865	3.71922
4 h after dark	14.5505	10.2387	17.8042
8 h after dark	30.218533333333333	24.6011	33.1081
12 h after dark	20.8689	19.3058	22.5555