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Understanding the Particle Data Group review documents The Particle Data Group's main product is the Review of Particle Physics, a 1600-page journal article which is updated and republished every couple of years Excerpts from the Review, including the Summary Table you've excerpted here, are published as a smaller paper booklet All of the content from the Review is available on the PDG website, somewhere, but I can never find the introductory
The number of particles in PDG, and what the data includes I checked here for computer-readable PDG particle data, and count about 174 unique particle IDs there, which seems like an awfully small number of particles to be "every particle type there is in the universe", especially with imagining what might be happening at the CERN experiments