what is the most time where exhibitions is 1701
CREATE TABLE "table1_27685921_1" (
  "year" real,
  "exhibitors_domestic" real,
  "exhibitors_foreign" real,
  "exhibitors_total" real,
  "visitors_total" real,
  "visitors_foreign_in_pct" text
);
SELECT MAX("year") FROM "table1_27685921_1" WHERE "exhibitors_total"=1701;