The economy of Tajikistan is dependent upon agriculture and services. Since independence, Tajikistan has gradually followed the path of transition economy, reforming its economic policies. With foreign revenue precariously dependent upon exports of cotton and aluminium, the economy is highly vulnerable to external shocks. Tajikistan's economy also incorporates a massive black market, primarily focused on the drug trade with Afghanistan, and heroin trafficking in Tajikistan is estimated to be equivalent 30-50% of national GDP as of 2012. In fiscal year (FY) 2000, international assistance remained an essential source of support for rehabilitation programs that reintegrated former civil war combatants into the civilian economy, thus helping keep the peace. International assistance also was ne