condition	mean	min	max
4 h after light	18.7741385	17.915781	19.632496
8 h after light	12.5173195	12.256444	12.778195
12 h after light	18.8427165	17.165725	20.519708
4 h after dark	23.498988	14.921808	32.076168
8 h after dark	20.690813	17.820083	23.561543
12 h after dark	31.180732	31.180732	31.180732