condition	mean	min	max
4 h after light	8.555205	7.66761	9.4428
8 h after light	16.9785	15.9039	18.0531
12 h after light	21.89615	19.8616	23.9307
4 h after dark	37.5057	31.9626	43.0488
8 h after dark	14.2166	13.3158	15.1174
12 h after dark	10.511695	9.63819	11.3852