condition	mean	min	max
4 h after light	13.858799999999999	12.9689	14.7487
8 h after light	13.082550000000001	12.3247	13.8404
12 h after light	11.53115	10.6776	12.3847
4 h after dark	15.8134	13.6347	19.7338
8 h after dark	22.239633333333334	21.7746	23.0752
12 h after dark	16.7108	14.2618	18.6561