condition mean min max 4 h after light 2153.7281235 2129.155134 2178.301113 8 h after light 2081.9926185 1696.539749 2467.445488 12 h after light 3311.6148350000003 3108.750689 3514.478981 4 h after dark 2836.4599835 2528.088856 3144.831111 8 h after dark 3789.198795 3186.943432 4391.454158 12 h after dark 2127.018293 2127.018293 2127.018293