condition	mean	min	max
4 h after light	57.3822	51.6017	63.1627
8 h after light	44.6874	43.1662	46.2086
12 h after light	30.10475	29.5217	30.6878
4 h after dark	25.8037	24.6815	26.9259
8 h after dark	27.8765	26.4222	29.3308
12 h after dark	28.6204	28.4846	28.7562