condition	mean	min	max
4 h after light	6.89428	6.46385	7.32471
8 h after light	8.205695	7.65168	8.75971
12 h after light	8.904555	8.48154	9.32757
4 h after dark	14.2012	12.4976	15.9048
8 h after dark	12.45575	12.0779	12.8336
12 h after dark	11.044049999999999	10.145	11.9431