condition	mean	min	max
4 h after light	10.32021	8.95369	12.6467
8 h after light	6.080206666666666	2.75319	8.40551
12 h after light	8.214336666666666	4.44636	12.7767
4 h after dark	13.18833	9.95579	16.3012
8 h after dark	20.4892	16.5615	22.5093
12 h after dark	13.120693333333334	9.58498	16.1542