condition mean min max 0 h after light 3.6840200000000003 3.48685 3.88119 4 h after light 1.9546350000000001 1.14595 2.76332 8 h after light 2.0566355 0.958251 3.15502 4 h after dark 6.57421 5.3481 7.80032 8 h after dark 7.089565 6.86823 7.3109 12 h after dark 4.8804 4.731 5.0298