condition	mean	min	max
4 h after light	4.411143333333333	2.36506	7.06702
8 h after light	3.420187	0.844201	5.29768
12 h after light	4.4769	2.73618	6.33612
4 h after dark	6.28321	4.89861	8.36786
8 h after dark	5.2277499999999995	3.39471	6.24621
12 h after dark	6.69808	5.89873	7.92958