Return the most commonly occuring items (levels)

        :param var: the CHAR variable (column) you want to count
        :param n: the top N to be displayed (defaults to 10)
        :param order: default to most common use order='data' to get then in alphbetic order
        :param title: an optional Title for the chart
        :return: Data Table

def top(self, var: str, n: int = 10, order: str = 'freq', title: str = '') -> object:
        """
        Return the most commonly occuring items (levels)

        :param var: the CHAR variable (column) you want to count
        :param n: the top N to be displayed (defaults to 10)
        :param order: default to most common use order='data' to get then in alphbetic order
        :param title: an optional Title for the chart
        :return: Data Table
        """
        code = "proc freq data=%s.%s %s order=%s noprint;" % (self.libref, self.table, self._dsopts(), order)
        code += "\n\ttables %s / out=tmpFreqOut;" % var
        code += "\nrun;"
        if len(title) > 0:
            code += '\ttitle "' + title + '";\n'
        code += "proc print data=tmpFreqOut(obs=%s); \nrun;" % n
        code += 'title;'

        if self.sas.nosub:
            print(code)
            return

        ll = self._is_valid()
        if self.results.upper() == 'PANDAS':
            code = "proc freq data=%s.%s%s order=%s noprint;" % (self.libref, self.table, self._dsopts(), order)
            code += "\n\ttables %s / out=tmpFreqOut;" % var
            code += "\nrun;"
            code += "\ndata tmpFreqOut; set tmpFreqOut(obs=%s); run;" % n
            return self._returnPD(code, 'tmpFreqOut')
        else:
            if self.HTML:
                if not ll:
                    ll = self.sas._io.submit(code)
                if not self.sas.batch:
                    self.sas.DISPLAY(self.sas.HTML(ll['LST']))
                else:
                    return ll
            else:
                if not ll:
                    ll = self.sas._io.submit(code, "text")
                if not self.sas.batch:
                    print(ll['LST'])
                else:
                    return ll