Specific countries may be failing to improve, but if you're from the USA remember that your country is 4.25% of the world, and very few of you were ever in abject poverty in the beginning of that timeframe.
Global abject poverty as a standard is roughly "sleeping rough" in western terms (more precisely, it's 2.15 US dollars of purchasing power per day), and the number of people worldwide at that level has gone from 1930 million in 1994 to 1510 million in 2004 to 806 million in 2014 to 693 million today.