Those graphs are seriously biased. 100 years? why not 42 or 111? it's a pretty arbitrary number.
Why not compare it on a generational basis, What were the advancements of the last 2 generations compared to our own? For example it's pretty pointless to compare basic education now to basic education 100 years ago. 40 years ago secondary education got you a better life than graduate education does now.
On the other hand, what are the conditions for Democracy, do we take the basics of free elections, free media and accountability/maximum publicity of government resources? if so, China, India, The U.S., Indonesia and Brazil are not true democracies and they make up 46% of the world population, in excess of the 44% the table above shows.