condition	mean	min	max
0 h after light	18.20095	17.9649	18.437
4 h after light	13.775	13.1355	14.4145
8 h after light	9.589839999999999	8.06428	11.1154
4 h after dark	16.3019	15.6319	16.9719
8 h after dark	14.66965	13.8765	15.4628
12 h after dark	17.42145	14.7045	20.1384