condition mean min max 3 h after light 0.781497 0.745657 0.819474 6 h after light 1.6202033333333334 1.27977 2.08787 9 h after light 4.489356666666667 2.7096 7.11617 12 h after light 4.11054 3.26825 5.68579 3 h after dark 2.79118 2.12218 3.15983 6 h after dark 1.42661 1.08475 2.0149 9 h after dark 1.168677 0.704771 1.59308 12 h after dark 0.7517706666666667 0.489858 0.987662