The diagram compares and contrast data on the changes in the differences in the amount of money spent on two main addictive substances: drugs and alcohol over a 18-year period from 1975 to 1992.
A closer look at the diagram highlights the fact that both the expenses of the alcohol and drugs despite the fluctuation, all increase but alcohol always higher than drugs
To be more precise, alcohol peaked at 186 billions of dollars in 1980, nearly doubled the drugs at the same time. Moreover, the biggest differences was in 1975-a difference of 111 billions dollars between drugs and alcohol.
When it comes to the change in during this period, the alcohol was increase 2 dollars between 1975 to 1992- from 146 to 148 billion dollars ; while drugs jumped from 35 billion dollars to 98 dollars, less than threefold at the same period. Additionally, the peak of drugs in 1980- 102 billion dollars nearly equal to the amount of the money spent on the alcohol in 1985. Both alcohol and drug were fall slightly compare to their peaked at the end of this time period.