Changes in the masses of elementary particles since 1932

The idea to check the change in the mass of elementary particles arose after another reading about the reduction of the mass of the proton and the increase in vibrations and, therefore, life became better, life became more fun. The idea of checking I nurtured a long time, until I reached the table. Was taken for a scan and Technical encyclopedia in 1927 under the editorship of L. K. Martens Outlet 18 of a volume with the article "proton" was held in 1932, 26 volume (the electron) was published in 1934. The neutron was discovered in 1932. The second strong point is the scan of the textbook "optional course of physics class 10", 1987. 3rd edition (Kabardin O. F.). The 2018 values are taken from Wikipedia.

As you can see, there are some changes after all. It is clear that the accuracy in 1932. low, but already in 1987. accuracy was good. People have been flying into space for 20 years, building accelerators, atoms and nuclei were crushed as nuts, scientific methods and equipment recorded data with high accuracy. So, the fluctuations of the masses of elementary particles still exist, but they change quite synchronously. Further observations will show what and how these fluctuations can affect.
picture by massatela