DEMOGRAPHICS OF PAKISTAN

 
Pakistan has an estimated population of 165,803,560, as of April 2006.[29] Pakistan has the world's sixth largest population, more than Russia, but less than Brazil; because of Pakistan's high growth rate, it is expected to surpass Brazil in population in the year 2020. Population projections for Pakistan are relatively difficult because of the apparent differences in the accuracy of each census and the inconsistencies between various surveys related to fertility rate, but it is likely that the rate of growth peaked in 1980s.[30] The population was estimated at 162,400,000[31] on July 1, 2005, with a fertility rate of 34 per thousand, a death rate of 10 per thousand and the rate of natural increase was 2.4%. Pakistan also had a high infant mortality rate of 85 per thousand births.Non-governmental and international sources report that Pakistans current population is estimated to be 170 to 190 million[citation needed].Urdu is the national language and lingua franca of Pakistan, but English is the official language used in the Constitution and widely used by corporate businesses, the educated urban elite and most universities.unjabi is spoken by over 60 million people, but has no official recognition in the country.
The large majority of Pakistanis belong to the Indo-Aryan ethnic group although there are a substantial number of Iranic peoples and smaller numbers of Dravidians. These major ethnic groups are further broken down into several smaller ethnic groups - Punjabis (44.68)% of the population, Pashtuns (15.42%), Sindhis (14.1%), Seraikis (10.53%), Muhajirs (7.57%), Balochis (3.57%) and others (4.66%).

 
Census data [33] indicates that 96% of the population are Muslims of whom nearly 80% are Sunni Muslims and 19% are Shi'a Muslims. Pakistan has the second highest Shia population in the world, after Iran, and more than India or Iraq. [34] The remainder comprises of Christians and Hindus, Jews, Sikhs, Parsis, Ahmadis, and Animists (mainly the Kalasha of Chitral). A few Buddhists are included in Pakistani statistics; however, these live in Indian administered Ladakh which Pakistan claims along with the rest of Kashmir.

 
The demographics of Pakistan were significantly influenced in 1947 by the movement of Muslims to Pakistan, and Hindus and Sikhs to India. As of 2005, over three million refugees (approximately 81.5% being ethnic Pashtuns) remain in Pakistan as a result of the wars in Afghanistan, according to the United Nations High Commissioner for Refugees, with 83% of the refugees reporting their intent to permanently settle in Pakistan.[35]