White paper on crime 2010 Part3/Chapter3/Section2/1
Table 3-3-2-1 shows the amount of stimulants and other drugs seized over the last five years.
As for the cases where stimulants seized by the police amounted to one kilogram or more per case, the countries or places from which the seized stimulants were shipped included, in descending order of their seized amounts, China (excluding Taiwan and Hong Kong; 155.3 kg in 14 cases), Hong Kong (40.1 kg in 15 cases) and Mexico (13.0 kg in 6 cases) (Source: The Criminal Investigation Bureau, National Police Agency).