CREATE TABLE table_4225 ("Quartier" CLOB, "% 0-19 years" CLOB, "% 20-39 years" CLOB, "% 40-59 years" CLOB, "% 60-74 years" CLOB, "% 75 years and +" CLOB)

the quartier menpenti has how many 40-59 year olds?
SELECT "% 40-59 years" FROM table_4225 WHERE "Quartier" = 'Menpenti'
SELECT "% 40-59 years" FROM "table_4225" WHERE "Quartier" = 'Menpenti'