condition	mean	min	max
4 h after light	19.2622	19.0618	19.4626
8 h after light	14.371	13.6318	15.1102
12 h after light	17.94455	17.7777	18.1114
4 h after dark	21.9521	21.0645	22.8397
8 h after dark	23.8868	23.6751	24.0985
12 h after dark	23.0151	21.7473	24.2829