We have here two different graphs.
One of them shows the millions of lives that were taken in Someland by 6 different diseases during 1990.
the other graph shows how much money was invested on medical research for each disease.

When looking at the graph of Deaths in Someland, we can clearly see that the disease that caused the greatest number of deaths, was TB. TB produced nearly 2 million deaths in 1990 in Someland. No other disease came close to producing the number of deaths that TB produced. The second disease that took the most number of souls was Diarrhoea. Although Diarrhoea, was responsible only for .6 million deaths, contrasting greatly of course with TB!
The other diseases that were responsible responsible for deaths, presented mostly the same death rate as Diarrhoea.They oscillated between .1 million deaths and .6 millions. The disease that took the lowest number of lives was Leprosy, which took approximately .5 million deaths, this was closely followed by Aids, who took about .6 deaths.

On the other hand, the graph that shows how much money was invested on the medical research of each disease, clearly states that the disease which received the greatest amount of funding for medical research was aids. Aids received almost 180 million dollars of funding. No other disease was even close to receiving that amount of money for research.Tropical Diseases received almost the same amount of funding as Leprosy. The disease that received the least amount of money was TB.

Seeing these two graphs, we could conclude that: the more a country invests on medical research of a certain disease, the lower the number of deaths produced by this disease.
If a country wants to reduce its death rate caused by a certain disease, it has to invest money on medical research related with this disease.
Someland invested more in medical research related with AIDS, than with any other disease. This has paid off on the fact that AIDS diseases took only about .3 deaths on 1990.