condition mean min max 0 h after light 17.8779 17.2464 18.5094 2 h after light 4.53156 4.3853 4.67782 4 h after light 3.8581200000000004 2.94682 4.76942 8 h after light 4.891235 4.08507 5.6974 12 h after light 6.10779 5.77382 6.44176 2 h after dark 8.667580000000001 8.36187 8.97329 4 h after dark 11.38065 11.153 11.6083 8 h after dark 18.8809 18.3636 19.3982 12 h after dark 19.8873 19.2541 20.5205