http://digbig.com/4dnre
"A new report, entitled 'A global alliance against forced labour' (Note 1), says that nearly 10 million people are exploited through forced labour in the private economy, rather than imposed directly by states. Of these, the study estimates a minimum of 2.4 million to be victims of human trafficking."
Report - PDF - http://www.ilo.org/dyn/declaris/DECLARATIONWEB.DOWNLOAD_BLOB?Var_DocumentID=5059