condition	mean	min	max
4 h after light	12.95144	12.878689999999999	13.09324
8 h after light	12.704889999999999	12.5405	12.94442
12 h after light	12.528936666666667	12.447239999999999	12.61554
4 h after dark	12.80886	12.72177	12.910969999999999
8 h after dark	12.68583	12.10171	13.059339999999999
12 h after dark	12.70206	12.56405	12.96707