I don't have an exact figure on DREAMers but read here, here and here. The issue is that the Morton Memo isn't being followed across the board. Non-criminal aliens (including DREAMers) still make up the majority of deportations in this country.

There are other DREAMers that DREAM Activist has been working to help since the Morton Memo was issued. Dylan was deported to South Africa last week despite having no criminal record, being DREAM Act eligible, etc. And there have been others that have been put into deportation proceedings despite not being a threat.

Just imagine the number that we don't know of that have been deported and had no idea they could get help.