SAN FRANCISCO - Data Domain ( DDUP) ended the year with a stellar fourth-quarter top-line performance Thursday, beating Wall Street estimates.The Santa Clara, Calif., maker of data storage equipment said revenue grew 151% to $44.9 million, from $17.9 million in the same quarter of the prior year. Analysts had expected a top line of $39.2 million, according to Thomson Financial. The company posted a loss of $76,000, or break-even EPS, vs. a loss of $2.4 million, or 32 cents, in the year-ago period. Excluding items, the company earned 8 cents a share. Analysts expected a loss of a penny. The stock slipped $1.04, or 4.6%, in recent after-hours trading to $21.50.