A March 2005 report by the ONDCP indicated that despite record aerial spraying of over 1,300 km2 of coca in Colombia in 2004, the total area under coca cultivation remained "statistically unchanged" at 1,140 km2. In response to the report, the Washington Office on Latin America (WOLA), an NGO that monitors the impact of US foreign policy in Latin America, observed that the aerial spraying strategy appeared to have hit its limits. According to WOLA, the new ONDCP data suggested a continued "balloon effect" as aggressive spraying in some areas has not deterred new cultivation elsewhere.