condition	mean	min	max
4 h after light	8.099195	6.65818	9.54021
8 h after light	7.973084999999999	7.94828	7.99789
12 h after light	10.60715	10.4951	10.7192
4 h after dark	15.6496	13.9272	16.9911
8 h after dark	14.612466666666666	13.311	15.8362
12 h after dark	9.185606666666667	7.49584	10.2786