TTM20172016201520142013
Gross profit (MM)$858.3$835.2$846.7$878.1$736.5$632.2
Gross profit growth3.5%-1.4%-3.6%19.2%16.5%-6.9%
Operating income (MM)$33.5-$1.9$162.1$224.4$207.9$186.9
Operating income growth-77.7%N/A-27.8%7.9%11.2%-34.4%
Net income (MM)$32.8$5.7$122.3$161.8$145.7$129.0
Net income growth-71.2%-95.3%-24.4%11.0%12.9%-36.1%
Diluted EPS$1.02$0.18$3.70$4.66$4.18$3.45
Diluted EPS growth-70.9%-95.2%-20.6%11.4%21.2%-31.9%

Notes:The company changed its fiscal year end from Dec 31 to Mar 31. Fiscal years 2014 and prior represent the twelve months ended on Dec 31, while fiscal 2015 represents the 12 months ended on Mar 31, resulting in a transitory quarter being omitted from annual results.