CREATE TABLE "current_roster" (
  "total" real,
  "builder" text,
  "model" text,
  "year_built" real,
  "numbers" text
);

Question: How many entries feature a year built of 2010?
SQL: SELECT COUNT("total") FROM "current_roster" WHERE "year_built"=2010;

Question: What are the numbers for lc models built in 2009?
SQL: SELECT "numbers" FROM "current_roster" WHERE "model"='lc' AND "year_built"=2009;