condition	mean	min	max
2 h after light	18.7663	18.0831	19.528
6 h after light	20.1261	19.6988	20.4546
10 h after light	22.8831	22.3659	23.4477
2 h after dark	28.7706	27.2713	29.8994
6 h after dark	36.76213333333334	34.947	39.8766
10 h after dark	41.2173	40.145	42.1333