Fig. 2-4-1-4 shows the trends of the number of newly admitted sentenced inmates (newly admitted inmates, etc. from January 1 to December 31 of each year for the execution of their sentences because their sentences have been irrevocably settled; hereinafter the same) over the last 20 years.
  The number of newly admitted sentenced inmates hit the bottom after the WW II at 20,864 in 1992, but has continued to increase ever since. Since 2000, the rate of increase has been larger for females than for males, and the female rate in 2006 was the record high after 1946 at 7.1%, up by 0.4 points from the previous year.

Fig. 2-4-1-4  Trends in the number of newly admitted sentenced inmates (1987-2006)