Follow the link I gave you to see stats.
Or better yet, read Prof Anatol Lieven's recent book on Pakistan.
Here are some interesting excerpts from Anatol Lieven's "Pakistan-A Hard Country" on the role of religion and a description of Edhi Foundation as the essence of Pakistan's real civil society:
"Charities with a religious character tend to more favored and more trusted. It is also true of Pakistan's most famous charitable institution by far, Edhi Foundation, which is nonreligious; however, Abdus Sattar Edhi is himself a deeply religious man, known by the public at large as Maulana (a Muslim distinguished by his piety and learning)even though he is not a Muslim scholar and in fact greatly dislikes being called this.
There is no sight in Pakistan more moving than to visit some dusty, impoverished small town in arid wasteland, apparently abandoned by God and all sensible men and certainly abandoned by the Pakistani state and its own elected representatives- to see the flag of the Edhi Foundation flying over a concrete shack with a telephone, and the only ambulance in town standing in front. Here, if anywhere in Pakistan, lies the truth of human religion and human morality".
Another excerpt from Lieven's book:
"Levels of trust in Pakistani state institutions are extremely low, and for good reason. Partly in consequence, Pakistan has one of the lowest levels of tax collection outside Africa. On the other hand, charitable donations, at almost 5% of GDP, is one of the highest rates in the world".
Lieven quotes the following commandment (2:172) from the Quran:
"Righteousness is not that ye turn your faces towards the east or the west, but righteousness is, one who believes in God, and the last day, and the angels, and the Book, and the prophets, and who gives wealth for His love to kindred, and orphans, and the poor, and the son of the road, beggars, and those in captivity; and who is steadfast in prayers, and gives alms."