SIFMA and Thompson Financial publish global CDO issuance data every quarter. This is what the past 3 years look like.
The above 2 charts represent exactly the same data, the bottom one just has a little bling added with Google widget. Google Chart API gets complicated to use for this one, so I just store data in Google Docs and make charts there.
I saw this chart in BIS’s report called "Credit risk transfer – developments from 2005 to 2007", published yesterday. Simple data, simple display, simple message.