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.
The last official census recording the population of Ecuador occurred in 2010 and showed there were 14,483,499 people living in the country, which is believed to have grown to 16.62 million in 2017. The country has a population density of 59 people per square kilometer (153/square mile), which ranks 151st in the world.