condition mean min max 3 h after light 1.6050866666666668 1.09773 2.52769 6 h after light 1.456847 0.685101 2.16966 9 h after light 1.287411 0.569853 2.2577 12 h after light 2.34955 2.05752 2.64155 3 h after dark 4.569923333333334 4.0703 5.20697 6 h after dark 4.031183333333334 3.39347 4.89433 9 h after dark 3.6406199999999997 3.51166 3.85294 12 h after dark 2.05109 1.4423 2.61722