What is the 2000 value if the 1998 value is 1.5?
CREATE TABLE "performance_indicators_for_nwsc_1998_201" (
  "1998" text,
  "2000" text,
  "2004" text,
  "2007" text,
  "2011" text
);
SELECT "2000" FROM "performance_indicators_for_nwsc_1998_201" WHERE "1998"='1.5';