public function getRelativeYearCount($end = null, $locale = null, $query = null, $cacheKey = null)
    {
        if (is_null($end))
        {
            $end = Carbon::today();
        }

        return $this->getCountInBetween($end->copy()->subYear()->startOfDay(), $end->endOfDay(), $locale, $query, $cacheKey);
    }