condition	mean	min	max
4 h after light	12951.697776666666	10791.31	14728.80333
8 h after light	10160.930556666666	6612.605	14866.62667
12 h after light	19734.817776666667	14052.09333	27858.14333
1.5 h after dark	31089.45222	24059.44333	44587.20333
5.5 h after dark	17070.145553333336	14134.39333	19717.06333
9.5 h after dark	16390.873333333333	11644.53667	21667.53333