condition	mean	min	max
4 h after light	6.28885	6.07329	6.637919999999999
8 h after light	6.17849	5.78389	6.38623
12 h after light	7.784843333333333	7.456460000000001	8.005289999999999
4 h after dark	7.704523333333333	7.268610000000001	8.018189999999999
8 h after dark	7.442663333333334	7.02765	7.7725100000000005
12 h after dark	6.971593333333334	6.37702	7.28328