condition mean min max 3 h after light 1.8369733333333333 1.42516 2.49671 6 h after light 1.2038303333333333 0.753191 1.57566 9 h after light 1.8472 1.01422 2.47562 12 h after light 2.1777025 1.16508 3.62762 3 h after dark 2.19996 1.49976 3.21361 6 h after dark 3.3568366666666667 2.13471 4.25708 9 h after dark 2.127681 0.975583 3.04658 12 h after dark 2.748525 1.69737 3.79968