condition	mean	min	max
4 h after light	6.952835	6.68273	7.22294
8 h after light	6.654865	5.93111	7.37862
12 h after light	6.65881	6.23484	7.08278
4 h after dark	9.61682	8.90644	10.3272
8 h after dark	8.998325	8.82753	9.16912
12 h after dark	8.840309999999999	8.32973	9.35089