condition mean min max 0 h after light 2.990175 2.85676 3.12359 4 h after light 0.5828405 0.39713 0.768551 8 h after light 0.7473325 0.723463 0.771202 4 h after dark 1.4464085 0.978877 1.91394 8 h after dark 1.9862549999999999 1.95725 2.01526 12 h after dark 1.8653050000000002 1.40602 2.32459