condition	mean	min	max
4 h after light	16.7132	13.3745	20.0519
8 h after light	20.01885	18.8767	21.161
12 h after light	51.53765	51.115	51.9603
4 h after dark	69.08953333333334	68.5872	69.3622
8 h after dark	56.09153333333333	53.4325	57.9593
12 h after dark	31.0459	29.3366	32.3622