Currency Exchange Dataset. (2018). Verkregen via www.bis.org/statistics/xrusd
World Food Programme Global Food Prices Dataset. (2018). Verkregen van https://data.humdata.org/dataset/wfp-food-prices
United Nations Refugee Dataset. (2018). Verkregen van http://data.un.org/Data.aspx?d=UNHCRf=indID%3AType-Ref