condition	mean	min	max
4 h after light	2.204285	1.69198	2.71659
8 h after light	2.104665	2.00076	2.20857
12 h after light	7.9340399999999995	7.83979	8.02829
4 h after dark	8.098186666666667	7.26911	9.16088
8 h after dark	7.792396666666667	6.72311	8.52283
12 h after dark	5.426	4.62283	6.06486