condition	mean	min	max
4 h after light	3.6643999999999997	3.52139	3.80741
8 h after light	3.928395	3.82739	4.0294
12 h after light	4.79392	4.75059	4.83725
4 h after dark	6.459695	6.38263	6.53676
8 h after dark	6.115015	6.07107	6.15896
12 h after dark	5.259715	4.86339	5.65604