condition	mean	min	max
4 h after light	16.6859	14.7545	18.6173
8 h after light	17.30155	17.2875	17.3156
12 h after light	21.3705	20.0724	22.6686
4 h after dark	18.38915	16.5466	20.2317
8 h after dark	17.586199999999998	16.1642	19.0082
12 h after dark	18.5834	18.545	18.6218