condition	mean	min	max
4 h after light	18.94135	17.0425	20.8402
8 h after light	14.1606	13.6544	14.6668
12 h after light	16.97035	15.2415	18.6992
4 h after dark	18.86515	18.8644	18.8659
8 h after dark	16.544249999999998	16.0173	17.0712
12 h after dark	17.86535	16.9182	18.8125