condition	mean	min	max
4 h after light	37.706900000000005	33.8688	41.545
8 h after light	14.75865	13.4323	16.085
12 h after light	5.03956	4.0961	5.98302
4 h after dark	8.763235	6.91637	10.6101
8 h after dark	20.49375	20.4452	20.5423
12 h after dark	31.355800000000002	28.5891	34.1225