condition	mean	min	max
4 h after light	11.73595	10.1041	13.3678
8 h after light	9.79439	7.30928	12.2795
12 h after light	11.90208	8.33176	15.4724
4 h after dark	16.84415	13.2977	20.3906
8 h after dark	10.1733	10.1283	10.2183
12 h after dark	12.744125	9.67985	15.8084