next up is dennis yablonsky. >> good afternoon. in case you don't know what an allegheny conference here we represent the southwest area. for 81 who grew up in pittsburgh, being here today say bit amazing. if you go back 30 years, 1983, our low point, our regional unemployment rate was 18.3%. think about that for a minute. 18.3%. today, it's 6.7% and dropping. and the real fundamental question we want to talk with you all today is how? what happened? what does pittsburgh do? and fundamentally, there are three things done over 30 years persistently and as the county executive said with collaboration. one, we did not stop doing what we were doing-g at. which was making things, financing it and providing the energy that you need to operate it. those three industries have been reinvented through the core in the regional economy. two, we leveraged world class and billion-dollar research there to create job industries that didn't exist 30 years ago. software, robotics, health care, medical devices, et cetera. today, there's over 1600 med