SEMI data September 2011 http://www.semi.org/en/node/39381?id=highlights SEMI charts are at... http://www.screencast.com/users/maugott/folders/SEMI%20equipment%20charts SEMI chart from 2001 content.screencast.com/users/maugott/folders/SEMI%20equipment%20charts/media/2914eefd-5c53-43b5-b7a7-09cd787ac419/SEMIequipment_btb2.gif SEMI chart from 1995 content.screencast.com/users/maugott/folders/SEMI%20equipment%20charts/media/eb4d06e4-7cd9-4991-8fa5-d9fece17b903/SEMIequipment_btb.gif Ratio of SEMI billings to SIA ww chip sales content.screencast.com/users/maugott/folders/SEMI%20equipment%20charts/media/4374c827-1edf-4831-83af-9c846e3ecce0/SEMIbillings_chip%20sales_ratio.gif