condition mean min max 4 h after light 67.818309 67.086236 68.550382 8 h after light 69.8448475 67.547371 72.142324 12 h after light 60.934785500000004 60.461512 61.408059 4 h after dark 77.633182 68.534958 86.731406 8 h after dark 65.3455975 63.776202 66.914993 12 h after dark 66.395806 66.395806 66.395806