[21: Available at State Department website: https://travel.state.gov/content/dam/visas/Statistics/Non-Immigrant-Statistics/RefusalRates/FY18.pdf]
[21: Disponibbli fis-sit web tad-Dipartiment tal-Istat: https://travel.state.gov/content/dam/visas/Statistics/Non-Immigrant-Statistics/RefusalRates/FY18.pdf]