condition	mean	min	max
4 h after light	16.2206	15.3638	17.0774
8 h after light	8.602355	8.52197	8.68274
12 h after light	10.43545	10.2818	10.5891
4 h after dark	16.4861	13.6531	19.6645
8 h after dark	19.3094	17.7548	22.2491
12 h after dark	20.953833333333336	18.4871	24.1809