condition	mean	min	max
4 h after light	9.189975	7.84525	10.5347
8 h after light	9.003485	7.91977	10.0872
12 h after light	8.492635	7.72279	9.26248
4 h after dark	8.910786666666667	8.44113	9.17663
8 h after dark	8.999263333333333	8.65777	9.41273
12 h after dark	8.412886666666665	7.82966	8.91935