condition mean min max 0 h after light 1.0238635 0.854107 1.19362 4 h after light 2.47149 2.08493 2.85805 8 h after light 3.169715 2.86791 3.47152 4 h after dark 3.355015 2.85823 3.8518 8 h after dark 2.27424 1.69353 2.85495 12 h after dark 1.93606 1.87317 1.99895