slightly improved items/year plot
slightly improved items/year plot

agoldst/dfrtopics,joncgoodwin/dfrtopics,agoldst/dfr-analysis,agoldst/dfrtopics,agoldst/dfrtopics,agoldst/dfrtopics,agoldst/dfrtopics,joncgoodwin/dfrtopics,agoldst/dfr-analysis,agoldst/dfr-analysis,joncgoodwin/dfrtopics,agoldst/dfr-analysis