condition	mean	min	max
4 h after light	7.27951	6.026	8.53302
8 h after light	10.45875	10.2601	10.6574
12 h after light	9.82325	8.9801	10.6664
4 h after dark	12.101849999999999	11.0689	13.1348
8 h after dark	8.23436	7.94828	8.52044
12 h after dark	8.309004999999999	8.27906	8.33895