Some points: (1) All figures in the article are from organisations who are known for their exaggerated estimates (the article itself says that the figures are "inflated"); and (2) even if that were not the case, the 115,000 figure is for primates, the vast majority of which will have been monkeys that are specially bred for the purpose to ensure that they aren't carrying any diseases which could effect experimental results. Chimps are very rarely used as lab animals because they are slow breeders, and sexually mature chimps (without which they cannot be bred) require special enclosures and trained handlers, because pissed off adult chimps that get loose tend to rip peoples' faces off.
It should also be noted that vivisection and animal research are not the same thing at all, although the organisations who produced the figures would like us to think that they are. Biologists, geneticists, gerontologists, congitive and behaviour specialist, and various other types of scientist publish a large body of research every year which based on animals, many (but far from all) of which are in labs, but the very nature of the research precludes harming the subjects, either physically or psychologically. Given the history of the sources, I doubt that they even tried to filter out these types of research from their figures.