What is the 1990-2000 percent change of a result that is estimated to be 45,393 in 2007?
CREATE TABLE "u_s_census_statistics" (
  "rank_csa" text,
  "state_s" text,
  "2007_estimate" text,
  "2000_population" text,
  "percent_change_1990_2000" text
);
SELECT "percent_change_1990_2000" FROM "u_s_census_statistics" WHERE "2007_estimate"='45,393';