'L' Millesimation

Does anyone have a full break down for the L serries or could point out where it might be found online? I'm interested to see how Panerai may have reined in production for some models in the last year. For example the PAM183 has gone from 1,500 units p.a. to 600, I believe. I'm also interested to know how many units there are for the 312 and 320? Thanks.