condition mean min max 3 h after light 0.91973 0.822941 1.05057 6 h after light 0.8898303333333333 0.585097 1.08801 9 h after light 0.8124263333333334 0.72117 0.919179 12 h after light 1.38452375 0.950415 1.74449 3 h after dark 1.34839 1.16505 1.46549 6 h after dark 1.82264 1.54793 2.01296 9 h after dark 1.4295 1.18333 1.58946 12 h after dark 1.11317 1.07133 1.15501