text: SELECT year,
         month,
         (south / (south + west + midwest + northeast) ) * 100 AS "SOUTH_PERCENTAGE",
         (west / (south + west + midwest + northeast)) * 100 AS "West_PERCENTAGE",
         (midwest / (south + west + midwest + northeast)) * 100 AS "Midwest_PERCENTAGE",
         (northeast / (south + west + midwest + northeast)) * 100 AS "Northeast_PERCENTAGE"
  FROM tutorial.us_housing_units
  WHERE year >= 2000;
   
  