How many percentages were recorded under 2006 when in 2001 was 14.6%?
CREATE TABLE "table1_18660332_2" (
  "ethnic_group" text,
  "2001_pct" text,
  "2001_people" text,
  "2006_pct" text,
  "2006_people" real
);
SELECT COUNT("2006_pct") FROM "table1_18660332_2" WHERE "2001_pct"='14.6';