condition	mean	min	max
4 h after light	10.03172	9.17674	10.8867
8 h after light	13.6473	13.1877	14.1069
12 h after light	14.852	13.1793	16.5247
4 h after dark	18.82665	18.5935	19.0598
8 h after dark	13.8525	13.6743	14.0307
12 h after dark	15.12365	14.7928	15.4545