285      * @param int $year2
289     public function chartNoChildrenFamilies(int $year1 = -1, int $year2 = -1): string  argument
294             ->chartNoChildrenFamilies($no_child_fam, $year1, $year2);
553      * @param int    $year2
557     public function statsChildrenQuery(int $year1 = -1, int $year2 = -1): array  argument
564         if ($year1 >= 0 && $year2 >= 0) {
573                 ->whereBetween('d_year', [$year1, $year2]);
695      * @param int $year2
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]);
741      * @param int $year2
745     public function monthFirstChildBySexQuery(int $year1 = -1, int $year2 = -1): Builder  argument
747         return $this->monthFirstChildQuery($year1, $year2)
1386      * @param int    $year2
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]);
1655      * @param int  $year2
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]);
1678      * @param int  $year2
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]);