These documents, sometimes referred to as Private Letter Rulings, are taken from the IRS Written Determinations page; the IRS also publishes a fuller explanation of what they are and what they mean. The collection is updated (at our end) daily.
Ethiopia's population was estimated at 51.7 million in 1990. According to the nation's only census, conducted in 1984, Ethiopia's population was about 42 million. But the census was far from comprehensive.
As of 2016, the estimated population of Kansas is 2.9 million. Although the last official Census was carried out in 2010, estimates are released every year and in 2015, it was estimated that the population of Kansas had reached 2,911,641. Kansas currently has a growth rate of 0.57% annually, which ranks 31st among all 50 states.