condition	mean	min	max
4 h after light	24.8737	23.5017	26.2457
8 h after light	19.4861	16.6707	22.3015
12 h after light	16.63655	16.469	16.8041
4 h after dark	45.438	44.37	46.506
8 h after dark	41.41895	38.2875	44.5504
12 h after dark	30.4311	30.0459	30.8163