condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.01157255 0.0 0.0231451 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0