I need help with this portion of my assignment. The question is: Find the absolute and relative change for the number of refugee arrivals into the US from 2011 to 2017. Im not sure how to answer it.

Number of refugees admitted each fiscal year into the U.S., in thousands, by region of nationality Africa Middle East Asla-Pacific Europe Americas 3.000 16,000 20,000 11,000 15,000 6,000 2,000 5,000 2,000 2,000 An 2002 2017 2002 2017 2002 2017 2002 2017 2002 2017 Note: Fiscal yearstarts Oct. 1. See Appendix C for classification of countries into regions Numbers are rounded to the nearest thousand. Source: Pew Research Center analysis of U.S. Siste Department's Refugee Processing Center data (Demographic Profile), accessed Oct 2, 2017. *U.S. Reseties Fewer Refugees Evenas Global Number of Displaced People Grows" PEW RESEARCH CENTERNumber of refugee arrivals each year into the U.S. 150 thousand 100 97 50 28 1982 1990 2000 2010 2017* Global refugee population 20 million 17.2 m 15 10.2 m 10 5 1982 1990 2000 2010 2017*