The current wave of globalization started in 1990 (the "second unbundling" according to Richard Baldwin). Companies started to use their western knowledge combined with lower wage rates. This led to the phenomenon which we now call global value chains and the "fragmentation" of production processes.
In that period, the number of multinationals must have grown, but I can't seem to find any statistics on the number of MNEs or their importance for the economy. Does anyone know of any data in this field?