condition mean min max 4 h after light 3.4864669999999998 3.4205449999999997 3.604538 8 h after light 3.0935046666666666 2.963269 3.3370610000000003 12 h after light 1.7757776666666667 1.504739 2.067445 16 h after light 3.389584 2.786361 4.018123 4 h after dark 3.0119483333333332 2.624434 3.320075 8 h after dark 1.8026356666666667 1.651561 1.9518529999999998