@structure = (
    [{ ... },
    ],
    [
        { ... },
        { ... },
    ],
    [
        { ... },
        { ... },
    ],
    [
        { ... },
        { ... },
    ],
);

##

foreach @query {
  my @ex = executeRequest ($_);
  push @structure, [];
for (my $i=0;$i<=$#ex;$i++) {
			
   push @structure->[$i], $ex[$i]; 
			
}

##</code><code>##

my @structure = (
   [ # Result from first query.
	{
	 'field1_statement1' => 'value',
	 'field2_statement1' => 'value'
	},
      
   ], 
   [ #Results from second query 
       
	{
	 'field1_statement2' => 'value',
         'field2_statement2' => 'value',
         'field3_statement2' => 'value'
	},
	{
	  'field1_statement2' => 'value',
          'field2_statement2' => 'value',
          'field3_statement2' => 'value'
	}
             
    ],
    [ # results from third query
     
         { 'field1_statement2' => 'value' } 
    ]
);

my $q2Total = sum @{ $structure[ 1 ] };
print $q2Total."\n";