condition	mean	min	max
4 h after light	8.241945000000001	7.87707	8.60682
8 h after light	10.462222	9.900176	11.024268
12 h after light	8.4788535	8.462762	8.494945
4 h after dark	8.432491500000001	7.91672	8.948263
8 h after dark	8.206847	7.966948	8.446746
12 h after dark	7.514383	7.514383	7.514383