Record 2,201 cases of molestation on trains reported in Tokyo last year

A record 2,201 cases of women molested on trains were reported in Tokyo last year, the Metropolitan Police Department (MPD) said.

However, MPD officials said that they believe this is just the tip of iceberg, noting that numerous victims of such crimes choose not to file criminal complaints against their molesters.

Among the 2,201 cases, the MPD arrested, or sent investigation reports to prosecutors, on 1,886 suspects aged 14 to 80. Those in their 30s, some 37 percent, accounted for the largest number of suspects. About 30 percent of the victims were high school girls.
I think the increase in mainly due in the more frequent reporting of molestations, rather than a real increase in cases. As they say, it is just the tip of the iceberg, as many women feel too embarassed to report it to the police.