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',
    'profit_loss'           => 'Profit & Loss',
    'gross_profit'          => 'Gross Profit',
    'net_profit'            => 'Net Profit',

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

    'quarter' => [
        '1'                 => 'Jan-Mar',
        '2'                 => 'Apr-Jun',
        '3'                 => 'Jul-Sep',
        '4'                 => 'Oct-Dec',
    ],

];