/**
* @return static
*/
protected function byAnnual()
{
$annualQdn = collect(Info::fromYear($this->year()))->reduce(function ($carry, $index) {
return $carry + [$index->month - 1 => round($index->count / 4)];
}, []);
return collect([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])->map(function ($value, $index) use($annualQdn) {
return collect($annualQdn)->get($index, 0);
}, []);
}