What is the average 800 kwh/kw p y with a 1600 kwh/kw p y less than 6.3 and a 2000 kwh/kw p y less than 1?
CREATE TABLE "cost_per_kilowatt_hour_us_cents_k_wh" (
  "20_years" text,
  "2400_k_wh_k_w_p_y" real,
  "2200_k_wh_k_w_p_y" real,
  "2000_k_wh_k_w_p_y" real,
  "1800_k_wh_k_w_p_y" real,
  "1600_k_wh_k_w_p_y" real,
  "1400_k_wh_k_w_p_y" real,
  "1200_k_wh_k_w_p_y" real,
  "1000_k_wh_k_w_p_y" real,
  "800_k_wh_k_w_p_y" real
);
SELECT AVG("800_k_wh_k_w_p_y") FROM "cost_per_kilowatt_hour_us_cents_k_wh" WHERE "1600_k_wh_k_w_p_y"<6.3 AND "2000_k_wh_k_w_p_y"<1;