condition	mean	min	max
4 h after light	6.17289	5.73532	6.58551
8 h after light	6.0248099999999996	5.56047	6.41745
12 h after light	6.351836666666667	5.73567	6.707330000000001
4 h after dark	6.02626	5.28843	6.54248
8 h after dark	6.029143333333334	5.60378	6.3590800000000005
12 h after dark	5.91725	5.50706	6.2480199999999995