owid

{
    "link": "Data from Flora (1983) available from http://gpih.ucdavis.edu/Government.htm Data from ICTD available from http://www.ictd.ac/datasets/the-ictd-government-revenue-dataset",
    "retrievedDate": "21/09/2016",
    "additionalInfo": "Data from the ICTD corresponds to estimates from OECD. More details in Prichard, W. (2016). Reassessing Tax and Development Research: A New Dataset, New Findings, and Lessons for Research. World Development, 80, 48-60.",
    "dataPublishedBy": "Data up to 1975 from Flora, Peter et al. 1983. State, Economy and Society in Western Europe, 1815-1975. Frankfurt: Campus Verlag. Data after 1975 from International Centre for Tax and Development",
    "dataPublisherSource": "Various sources"
}