condition	mean	min	max
4 h after light	61.6075	59.6816	63.5334
8 h after light	28.6295	28.0024	29.2566
12 h after light	17.40325	16.991	17.8155
4 h after dark	30.96613333333333	30.2442	32.2012
8 h after dark	39.41276666666666	37.0149	43.4403
12 h after dark	57.303	55.7609	59.6271