condition	mean	min	max
4 h after light	15.0846	13.4103	16.7589
8 h after light	10.046775	9.55245	10.5411
12 h after light	10.765705	9.16831	12.3631
4 h after dark	11.159233333333333	10.4184	12.1626
8 h after dark	16.14816666666667	14.9551	18.0208
12 h after dark	14.7601	12.6042	15.8813