condition	mean	min	max
0 h after light	1.4531	1.3852	1.521
4 h after light	1.10888	1.09064	1.12712
8 h after light	0.4163295	0.410399	0.42226
4 h after dark	0.7479815	0.545353	0.95061
8 h after dark	1.50431	1.498	1.51062
12 h after dark	1.502415	1.48587	1.51896