It's common to hear political debates and read headlines regarding immigration, policy and how welcoming (or unwelcoming) the United States is to those who want to move here.

Sometimes, though, some key facts are missing. So bear with me as I lay out what I hope will help readers form a frame of reference that will help them draw their own conclusions about U.S. policy.

The world's most populous countries are China (1.4 billion), India (1.3 billion), the United States (326 million), Indonesia (260 million) and Brazil (207 million), according to the U.S. Census Bureau. While the United States is the world's third-most-populous country, China and India each have roughly four times our population.

In 2010, 12.9 percent of the U.S. population had been born outside the United States. Of them, 44 percent had become U.S. citizens. The foreign-born percentage of the U.S. population had not been this high since 1920, when it was 13.2 percent. Afterward, tighter immigration laws led that percentage to decline to as low as 4.7 percent in the 1970's before looser immigration laws caused it to rise again. The percentage is continuing to rise.

How does the United States stack up against other countries in terms of accepting immigrants? According to U.S. News & World Report, "10 Countries That Take the Most Immigrants" by Gaby Galvin, published July 10, 2017, "the U.S. accepted 1,051,000 permanent migrants in 2015, remaining the top country for immigration. [Includes lawful permanent resident status only]. These new migrants brought the entire U.S. foreign-born population to 13.3 percent of the total population." Germany ranked number two for taking the most immigrants, followed by the United Kingdom, Canada and France.

While accepting the most migrants, "the U.S. is also the top refugee resettlement county [in the world]...In 2015, the U.S. admitted 69,920 refugees," according to Galvin. Note that none of the other top five countries in terms of population are included among the top five - or even the top 10 -- that accept immigrants.

How does the United States compare with the other most populous countries in the world? According to the United Nations' 2015 Migration Wall Chart, the United States was home to the highest number of migrants in the world in 2015. That year, the United States had 46.6 million migrants in 2015, an increase of 11.8 million from 2010.

In comparison, the world's most populous countries had a much lower migrant population. China had less than 0.1 percent or 978,000 migrants in 2015, India had 5.2 million migrants in 2015, down from 6.4 million in 2010 and representing just 0.4 percent of the population. Indonesia was listed at 328,000 migrants in 2015, representing 0.1 percent of the population. Brazil had 714,000 migrants in 2015, representing 1.4 percent of the population.

The Russian Federation (population 144 million) ranked second in total migrant population, which was recorded at 11.6 million in 2015. However, this represented only 8.1 percent of their population (rising very slightly, from 8.0 percent in 2010).

These immigration statistics are affected by the ease of travel to one country or another. Because the United States is located in the middle of a continent and stretches from "sea to shining sea," it has two of the top 10 longest land borders in the world. The border it shares with Canada is 5,525 miles long. This is the only land border for Canada. That distance includes the border between the Continental United States and Canada, and between Canada and Alaska.

The 10th-longest land border in the world lies between the United States and Mexico, and is 1,951 miles long. This border is the highest-traveled border in the world, with 350 million legal crossings a year.

So, when comparing with other high-population countries, the United States is the world's most welcoming. While you might still argue for a more liberal or less liberal immigration policy, you would do well to base that argument on some of these key facts.

To find out more about Jackie Gingrich Cushman, and read features by other Creators Syndicate writers and cartoonists, visit www.creators.com.