TTM20152014201320122011
Gross margin43.8%43.8%43.1%43.7%42.3%43.9%
Gross margin growth (bps)2875-59138-163N/A
Operating margin-0.1%-0.6%-3.5%0.0%-3.2%2.7%
Operating margin growth (bps)252282-350326-593N/A
Net profit margin0.2%-0.4%-3.6%0.5%7.2%-2.1%
Net profit margin growth (bps)359318-406-671925N/A