public function getReportDataSummaryByYear()
    {
        Piwik::checkUserHasSuperUserAccess();

        $dataTable = $this->getReportDataSummary();

        $dataTable->filter('GroupBy', array('label', __NAMESPACE__ . '\API::getArchiveTableYear'));

        return $dataTable;
    }
public function getReportDataSummaryByYear()
    {
        Piwik::checkUserHasSuperUserAccess();

        $dataTable = $this->getReportDataSummary();

        $dataTable->filter('GroupBy', array('label', __NAMESPACE__ . '\API::getArchiveTableYear'));

        return $dataTable;
    }
public function getReportDataSummaryByYear ( ) { Piwik :: checkUserHasSuperUserAccess ( ) ; $ dataTable = $ this -> getReportDataSummary ( ) ; $ dataTable -> filter ( 'GroupBy' , array ( 'label' , __NAMESPACE__ . '\API::getArchiveTableYear' ) ) ; return $ dataTable ; }
Returns a datatable describing how much space is taken up by each blob
archive table, grouped by year.

@return DataTable A datatable with three columns: 'data_size', 'index_size', 'row_count'.
Returns a datatable describing how much space is taken up by each blob archive table grouped by year .