{"country":{"iso3":"USA","name":"United States","slug":"united-states"},"indicator":{"wb_code":"EN.ATM.PM25.MC.ZS","name":"PM2.5 air pollution, population exposed to levels exceeding WHO guideline value (% of total)","unit":"","category":"Environment"},"source":"World Bank Open Data — https://data.worldbank.org","license":"CC BY 4.0","series":[{"year":1990,"value":47.997737},{"year":1995,"value":44.694454},{"year":2000,"value":43.081345},{"year":2005,"value":44.220562},{"year":2010,"value":38.213032},{"year":2011,"value":46.686199},{"year":2012,"value":28.658081},{"year":2013,"value":20.840557},{"year":2014,"value":11.731297},{"year":2015,"value":8.465307},{"year":2016,"value":3.334436},{"year":2017,"value":3.34317}]}