Table 3-2-1-1 shows the number of Boryokudan members, etc. (regular members and quasi-members of Boryokudan groups; hereinafter the same in this Section) over the last 10 years.
  In 2005, the number of regular members decreased by about 6% from 1996 while that of quasi-members increased by about 27%.

Table 3-2-1-1  Number of Boryokudan members (As of December 31 in 1996-2005)

  As of December 31, 2005, 21 groups were designated as designated Boryokudan groups under the Act for Prevention of Wrongness by Boryokudan Members (Act No. 77 of 1991; hereinafter referred to as "Anti-Boryokudan Act"). Regular members of the three major groups, the Sixth Yamaguchi-Gumi, the Inagawa-Kai, and the Sumiyoshi-Kai, were around 33,000 (increased around 700 from the previous year), and accounting for nearly 76% of the total regular Boryokudan members (Source: The Criminal Investigation Bureau, National Police Agency).
  Under the Anti-Boryokudan Act, 2,668 termination orders and 112 recurrence preventive orders were issued in 2005, both showing a decrease of 49 from 2004 (Source: The Criminal Investigation Bureau, National Police Agency).