Fascinating indeed.

Some 300,000 prostitutes ply the streets of Tehran, or one out of 10 of the city's female population of child-bearing age, [1] according to the most frequently cited sources (see Jihadis and whores Asia Times Online, November 21, 2006.)

Prostitution incorporates such a large proportion of Iran's marriageable females as to accelerate the country's demographic decline, which by 2030 will leave Iran with as high a proportion of pensioners as Western Europe, just as its oil reserves run out. Unlike Norway, which entrusted its oil windfalls to a national trust under professional management, Iran has allowed the political class to steal its patrimony.

from 'Worst of times for Iran'