CREATE TABLE table_204_161 (id NUMBER, "name" CLOB, "1968 cf\ designator" CLOB, "place of\ manufacture" CLOB, "primary\ role ( s ) " CLOB, "service\ period" CLOB, "#\ used" NUMBER)

how many avro ansons were used from 1940-1947 ?
SELECT "#\nused" FROM table_204_161 WHERE "name" = 'avro anson'
SELECT "#\nused" FROM "table_204_161" WHERE "name" = 'avro anson'