condition	mean	min	max
4 h after light	47.1776	31.0725	63.2827
8 h after light	26.0535	22.7286	29.3784
12 h after light	23.72015	22.2637	25.1766
4 h after dark	42.0621	40.9078	43.2164
8 h after dark	53.92805	49.6077	58.2484
12 h after dark	85.9148	84.1413	87.6883