condition mean min max 4 h after light 169.5441635 159.193607 179.89472 8 h after light 147.2220385 133.960161 160.483916 12 h after light 141.229089 140.146291 142.311887 4 h after dark 158.7339145 133.158849 184.30898 8 h after dark 178.93198999999998 157.770518 200.093462 12 h after dark 169.735133 169.735133 169.735133