condition mean min max 4 h after light 1.056845 0.59865 1.51504 8 h after light 2.051915 1.98899 2.11484 12 h after light 2.349995 2.05889 2.6411 4 h after dark 3.57189 2.43905 5.76431 8 h after dark 2.1606233333333336 1.04881 4.36667 12 h after dark 1.8706006666666666 0.807762 3.25921