akaunting/resources/lang/en-GB/reports.php

<?php

return [

    'this_year'             => 'This Year',
    'previous_year'         => 'Previous Year',
    'this_quarter'          => 'This Quarter',
    'previous_quarter'      => 'Previous Quarter',
    'last_12_months'        => 'Last 12 Months',

    'summary' => [
        'income'            => 'Income Summary',
        'expense'           => 'Expense Summary',
        'income_expense'    => 'Income vs Expense',
    ],

];