condition mean min max 0 h after light 3.417995 3.38012 3.45587 4 h after light 2.6676650000000004 2.66475 2.67058 8 h after light 2.6603 1.90155 3.41905 4 h after dark 4.36871 2.93544 5.80198 8 h after dark 4.98757 4.82375 5.15139 12 h after dark 3.877985 3.55854 4.19743