condition	mean	min	max
4 h after light	5.3278	5.2032099999999994	5.41702
8 h after light	5.427363333333333	5.31849	5.49822
12 h after light	5.3207	5.06541	5.54359
4 h after dark	5.27508	5.16611	5.47149
8 h after dark	5.428893333333333	5.30861	5.62261
12 h after dark	5.343896666666668	5.2226300000000005	5.483230000000001