Examine the table showing the foreign-born population of the U.S. in 2017. Excluding Mexico, what continent is the source of the largest number of immigrants to the U.S.?

To answer your question, I would need access to the specific table or data you mentioned. However, I can provide a general overview of the foreign-born population in the United States in 2017.

According to data from the American Community Survey (ACS), in 2017, the foreign-born population in the United States was estimated to be around 44.5 million people. Although I don't have the exact breakdown by continent, I can provide some insights based on previous years' data.

In recent years, the largest number of immigrants to the United States, excluding Mexico, has come from Asia. Countries such as India, China, the Philippines, Vietnam, and South Korea have consistently been significant sources of immigration to the United States. The Asian continent, as a whole, has been a prominent contributor to the foreign-born population, surpassing other continents.

However, to provide a more accurate answer regarding the specific continent of origin of the largest number of immigrants to the U.S. in 2017, I would need access to the table you referred to or the source data with a continent breakdown.