condition	mean	min	max
4 h after light	15.58761	7.93992	23.2353
8 h after light	28.681350000000002	26.8415	30.5212
12 h after light	17.66535	14.0728	21.2579
4 h after dark	9.04917	8.51209	10.0288
8 h after dark	9.875653333333334	9.44489	10.3931
12 h after dark	10.9877	10.4993	11.7013