condition mean min max 0 h after light 0.5855790000000001 0.502436 0.668722 4 h after light 1.229365 1.02207 1.43666 8 h after light 3.8376449999999998 2.38251 5.29278 4 h after dark 3.643395 3.61224 3.67455 8 h after dark 2.45695 2.42331 2.49059 12 h after dark 0.822049 0.500868 1.14323