According to Japan’s National Police Agency, in 2010 there were 22 designated organized crime syndicates in the country. The number of full and part-time Yakuza members totaled 80,900, down from 88,600 in 1990. Almost half of the total organized crime membership was in the Yamaguchi-gumi.
Source: Linda Sieg, “Analysis – Japan tries, again, to cut corporate ties to yakuza,” Reuters, November 8, 2011.