MADRID, March 15 (Reuters) - Spain announced the following results at Tuesday's Treasury bill auction BANCS. (Amounts bid, allocated in millions of euros) ISSUE YIELD PREVIOUS PRICE PREVIOUS BID ALLOCATED 3-month -0.281 -0.214 100.071 100.046 2,050 561 9-month -0.068 -0.017 100.051 100.013 4,805 2,373 The bid-to-cover ratio on the 3-month bill was 3.7 versus 5.4 at the last auction. The bid-to-cover ratio on the 9-month bill was 2.0 versus 1.6 at the last auction. For further information, click on TESORESP08 and BANCS. (Reporting by Madrid Newsroom)