SELECT round(AVG(TOTAL_VALUE)) as SA_MEDIAN
FROM (SELECT TOTAL_VALUE
      FROM CONVENIENCE
      where SURVEY_YEAR = 2019
      and KIND_CODE = 100
      ORDER BY TOTAL_VALUE
      LIMIT 2 - (SELECT COUNT(*) FROM CONVENIENCE where SURVEY_YEAR = 2019 and KIND_CODE = 100) % 2
      OFFSET (SELECT (COUNT(*) - 1) / 2
              FROM CONVENIENCE where SURVEY_YEAR = 2019 and KIND_CODE = 100));