condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.6705733333333334 0.0 2.01172 8 h after dark 0.5582066666666666 0.0 1.67462 12 h after dark 0.2819146666666667 0.0 0.845744