SEMI data May 2010 http://www.semi.org/en/Press/CTR_037662 SEMI chart from 2001 http://i105.photobucket.com/albums/m225/maugott/SEMI%20charts/SEMIequipment_btb2.gif SEMI chart from 1995 http://i105.photobucket.com/albums/m225/maugott/SEMI%20charts/SEMIequipment_btb.gif i105.photobucket.com/albums/m225/maugott/SEMI%20charts/SEMIequipment_btb2.gif i105.photobucket.com/albums/m225/maugott/SEMI%20charts/SEMIequipment_btb.gif