condition	mean	min	max
4 h after light	18.32159	17.760249	18.882931
8 h after light	21.305199	19.627038	22.98336
12 h after light	15.1884415	13.662638	16.714245
4 h after dark	13.460898499999999	10.503884	16.417913
8 h after dark	14.2089595	11.446835	16.971084
12 h after dark	18.32511	18.32511	18.32511