The full 2010 survey results are reported in "Monitoring the Future National Survey Results on Drug Use, 1975;2010: Volume I, Secondary School Students". That monograph contains a description of MTF's design and purposes, as well as extended reporting on substance use of all kinds, licit and illicit, and a number of related factors such as attitudes and beliefs about drugs, age of initiation, non-continuation of drug use, relevant conditions in the social environment, history of daily marijuana use, use of drugs for the treatment of ADHD, and sources of prescription drugs used outside of medical supervision. Appendix D of "Volume I" contains tabular data on trends in drug use for various demographic subgroups for each of the many drugs under study. The present occasional paper presents those same subgroup trends in "graphic form", because graphic presentations are much easier to comprehend. (Showing the trends in color greatly facilitates the differentiation of the various trend lines in each graph.) Historically, the graphic presentations have not been included in "Volume I" due both to their length and the cost of printing them in color. Even though the annual monographs from the study now are published electronically on the study's Website, rather than in paper form, the authors continue to make the graphic presentation of the subgroup trends available in this separate document in the MTF Occasional Paper series. Trend data are presented for 12th-grade respondents beginning with 1975, the first year in which a nationally representative sample of high school seniors was surveyed. Trend data for 8th and 10th grades are presented beginning with 1991, when the study's annual surveys were expanded to include those grade levels. The numerical information upon which these graphics are based is contained in the relevant appendix D tables of "Volume I". Detailed definitions of the demographic categories are given in appendix B of that volume. (Contains 258 figures.)