The rough guides for GROSS DOMESTIC PRODUCT (GDP) per capita was $8,130, and real GDP growth was 3.7 percent in 2000. Riyadh is the modern capital of a state developing a modern infrastructure. Mecca and Medina are the two most important cities, attracting over two million Muslim pilgrims each year for the Hajj, the quintessential Islamic pilgrimage. It is important to remember that Islamic beliefs make up a key component of Muslim population economics, especially in Saudi Arabia. From a capitalist perspective, the Hajj impacts the Saudi economy like tourism and international finance, and beliefs like alms for the poor, are similar to state welfare programs. This is to say, religious beliefs often have economic impact. The rough guides 2016.