SELECT COUNT("Population (1991)") FROM table_27848 WHERE "City / municipality" = 'Bečej'
What is the number of 1991 populations named Be ej?
CREATE TABLE table_27848 (
    "Urban settlement" text,
    "Cyrillic Name" text,
    "City / municipality" text,
    "District" text,
    "Population (1991)" real,
    "Population (2002)" real,
    "Population (2011)" real
)