TTM20162015201420132012
Gross margin32.2%31.6%28.5%39.9%41.1%38.0%
Gross margin growth (bps)459314-1,143-116312265
Operating margin-8.0%-9.7%-8.5%9.9%12.6%9.6%
Operating margin growth (bps)443-125-1,844-266297341
Net profit margin-6.4%-7.1%-5.8%6.1%7.7%5.8%
Net profit margin growth (bps)210-137-1,182-169195193