condition	mean	min	max
4 h after light	17.0232515	15.49009	18.556413
8 h after light	15.340453499999999	14.143699	16.537208
12 h after light	14.9369295	14.816267	15.057592
4 h after dark	13.0794685	11.731186	14.427751
8 h after dark	15.972237500000002	14.610549	17.333926
12 h after dark	17.717411	17.717411	17.717411