code: def _check_stringify_year_row(self, row_index):
          '''
          Checks the given row to see if it is labeled year data and fills any blank years within that
          data.
          '''
          table_row = self.table[row_index]
          # State trackers
          prior_year = None
          for column_index in range(self.start[1]+1, self.end[1]):
              current_year = table_row[column_index]
              # Quit if we see
              if not self._check_years(current_year, prior_year):
                  return
              # Only copy when we see a non-empty entry
              if current_year:
                  prior_year = current_year
  
          # If we have a title of years, convert them to strings
          self._stringify_row(row_indexf _check_stringify_year_row(self, row_index):
          '''
          Checks the given row to see if it is labeled year data and fills any blank years within that
          data.
          '''
          table_row = self.table[row_index]
          # State trackers
          prior_year = None
          for column_index in range(self.start[1]+1, self.end[1]):
              current_year = table_row[column_index]
              # Quit if we see
              if not self._check_years(current_year, prior_year):
                  return
              # Only copy when we see a non-empty entry
              if current_year:
                  prior_year = current_year
  
          # If we have a title of years, convert them to strings
          self._stringify_row(row_index)
docs: Checks the given row to see if it is labeled year data and fills any blank years within that
          data.