condition	mean	min	max
4 h after light	5.779845	5.49707	6.06262
8 h after light	6.03861	5.21745	6.85977
12 h after light	14.2721	13.8569	14.6873
4 h after dark	17.74185	15.866	19.6177
8 h after dark	18.313200000000002	18.0518	18.5746
12 h after dark	13.386199999999999	12.5777	14.1947