Library Computer Use By Age

CREATE TABLE jan_2017_dec_2019 (
  "month" VARCHAR,
  "location" VARCHAR,
  "n_0_4" BIGINT  -- 0 > 4,
  "n_05_09" BIGINT  -- 05 > 09,
  "n_10_15" BIGINT  -- 10 > 15,
  "n_16_19" BIGINT  -- 16 > 19,
  "n_20_24" BIGINT  -- 20 > 24,
  "n_25_34" BIGINT  -- 25 > 34,
  "n_35_44" BIGINT  -- 35 > 44,
  "n_45_54" BIGINT  -- 45 > 54,
  "n_55_64" BIGINT  -- 55 > 64,
  "n_65_74" BIGINT  -- 65 > 74,
  "n_75" BIGINT  -- 75>,
  "not_known" BIGINT
);