condition mean min max 0 h after light 0.751441 0.712559 0.790323 4 h after light 1.009138 0.966336 1.05194 8 h after light 2.97281 2.8962 3.04942 4 h after dark 2.19636 1.83127 2.56145 8 h after dark 1.5042650000000002 1.41287 1.59566 12 h after dark 0.8368495 0.631409 1.04229