condition	mean	min	max
4 h after light	15.69725	14.7453	16.6492
8 h after light	16.92525	16.125	17.7255
12 h after light	21.48245	20.2273	22.7376
4 h after dark	28.6356	27.1631	30.1081
8 h after dark	22.5307	22.2444	22.817
12 h after dark	21.4527	19.7729	23.1325