We don't have the information about what happens to the case afterward. The only thing we know is that they were probably withdrawn because reasonable and probable grounds did not exist to lay a charge, or the probability of conviction was judged to be too low by the crown so it decided not to proceed but to withdraw the charge.
Interestingly, the only parallel we find is that there is also a higher number of withdrawn charges pertaining to prostitution cases, or in certain sexual assault cases as well. These types of cases also experience a relatively high number of withdrawn or stayed charges, but we don't know if the people involved are being prosecuted on other charges. We would have to do linkages of these cases, I guess.