ance).

Radio broadcast stations
This entry includes the total number of AM, FM, and shortwave broadcast
stations.

Radios
This entry gives the total number of radio receivers.

Railways
This entry includes the total route length of the railway network and
of its component parts by gauge: broad, dual, narrow, standard, and
other.

Reference maps
This section includes world, regional, and special or current interest
maps.

Religions
This entry includes a rank ordering of religions by adherents starting
with the largest group and sometimes includes the percent of total
population.

Sex ratio
This entry includes the number of males for each female in five age
groups - at birth, under 15 years, 15-64 years, 65 years and over, and
for the total population. Sex ratio at birth has recently emerged as an
indicator of certain kinds of sex discrimination in some countries. For
instance, high sex ratios at birth in some Asian countries are now
attributed to sex-selective abortion and infanticide due to a strong
preference for sons. This will affect future marriage patterns and
fertility patterns. Eventually it could cause unrest among young adult
males who are unable to find partners.

Suffrage
This entry gives the age at enfranchisement and whether the right to
vote is universal or restricted.

Telephone numbers
All telephone numbers in the Factbook consist of the country code in
brackets, the city or area code (where required) in parentheses, and
the local number. The one component that is not presented is the
international access code, which varies from country to country. For
example, an international direct dial telephone call placed from the US
to Madrid, Spain, would be as follows:

011 [34] (1) 577-xxxx, where
011 is the international access code for station-to-station calls;
01 is for calls other than station-to-station calls,
[34] is the country code for Spain,
(1) is the city code for Madrid,
577 is the local exchange, and
xxxx is the local telephone number.

An international direct dial telephone call placed from another country
to the US would be as follows:
international access code + [1] (202) 939-xxxx, where
[1] is the country code for the US,
(202) is the area code for Washington, DC,
939 is the local exchange, and
xxxx is the local telephone number.

Telephone system
This entry includes a brief characterization of the system with det