condition	mean	min	max
4 h after light	12.0954	10.7941	13.3967
8 h after light	12.51535	12.1741	12.8566
12 h after light	13.47545	13.3703	13.5806
4 h after dark	14.7965	14.544	15.0285
8 h after dark	14.9634	14.7286	15.243
12 h after dark	13.940766666666667	13.5503	14.4884