(8) Earnings Per Share

The share and net income per share data for all periods presented are based on the historical weighted-average shares outstanding. The diluted earnings per share calculations show the effect of the weighted-average stock options and restricted stock units outstanding from our equity incentive plans. Performance stock units are not included in the diluted earnings per share calculation until the performance-based criteria have been met.

For both 13 week periods ended March 27, 2018 and March 28, 2017, there were no shares of nonvested stock that were outstanding, but not included in the computation of diluted earnings per share because their inclusion would have had an anti-dilutive effect.

The following table sets forth the calculation of earnings per share and weighted-average shares outstanding (in thousands) as presented in the accompanying unaudited condensed consolidated statements of income and comprehensive income:


	13 Weeks Ended
	March 27, 2018		March 28, 2017
Net income attributable to Texas Roadhouse, Inc. and subsidiaries	$	54,541	$	34,313
Basic EPS:
Weighted-average common shares outstanding		71,333		70,779
Basic EPS	$	0.76	$	0.48
Diluted EPS:
Weighted-average common shares outstanding		71,333		70,779
Dilutive effect of stock options and nonvested stock		472		555
Shares-diluted		71,805		71,334
Diluted EPS	$	0.76	$	0.48