284      * @param int $year1
289     public function chartNoChildrenFamilies(int $year1 = -1, int $year2 = -1): string  argument
294             ->chartNoChildrenFamilies($no_child_fam, $year1, $year2);
552      * @param int    $year1
557     public function statsChildrenQuery(int $year1 = -1, int $year2 = -1): array  argument
564         if ($year1 >= 0 && $year2 >= 0) {
573                 ->whereBetween('d_year', [$year1, $year2]);
694      * @param int $year1
699     public function monthFirstChildQuery(int $year1 = -1, int $year2 = -1): Builder  argument
730         if ($year1 >= 0 && $year2 >= 0) {
731             $query->whereBetween('d_year', [$year1, $year2]);
740      * @param int $year1
745     public function monthFirstChildBySexQuery(int $year1 = -1, int $year2 = -1): Builder  argument
747         return $this->monthFirstChildQuery($year1, $year2)
1385      * @param int    $year1
1390     public function statsMarrAgeQuery(string $sex, int $year1 = -1, int $year2 = -1): array  argument
1412         if ($year1 >= 0 && $year2 >= 0) {
1413             $query->whereBetween('married.d_year', [$year1, $year2]);
1654      * @param int  $year1
1659     public function statsMarriageQuery(int $year1 = -1, int $year2 = -1): Builder  argument
1667         if ($year1 >= 0 && $year2 >= 0) {
1668             $query->whereBetween('d_year', [$year1, $year2]);
1677      * @param int  $year1
1682     public function statsFirstMarriageQuery(int $year1 = -1, int $year2 = -1): Builder  argument
1695         if ($year1 >= 0 && $year2 >= 0) {
1696             $query->whereBetween('d_year', [$year1, $year2]);