This website contains public data on immigration obtained from U.S. government agencies, as well as volunteers' analysis on those data.
本站点包含：美国各政府部门公开移民数据及 NIU 获得的独家数据， NIU 志愿者对数据的分析。
- Jan 2016
- I-485 Pending Inventory Data for Jan 2015, Apr 2015, Jul 2015, Oct 2015 published on this site.
- Nov 2014
- Nov 2013
- Feb 2013
- Immigrant Visa Issuance updated to include FY 2012 data
- NIU requested demand data fixes, increasing 18,000 number to the FY 2013 EB totals (Feb 2013 Demand Data version 1, version 2)
- Dec 2012
- Visa Bulletin and Demand Data updated
- National Visa Center waitlist published in the 3rd week of December
- NIU Exclusive Data release -- Form I-140 and EB I-485 Approval Stats since 2005 by Country