Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.

Text: intel corporation notes to consolidated financial statements ( continued ) the aggregate fair value of awards that vested in 2015 was $ 1.5 billion ( $ 1.1 billion in 2014 and $ 1.0 billion in 2013 ) , which represents the market value of our common stock on the date that the rsus vested . the grant-date fair value of awards that vested in 2015 was $ 1.1 billion ( $ 949 million in 2014 and $ 899 million in 2013 ) . the number of rsus vested includes shares of common stock that we withheld on behalf of employees to satisfy the minimum statutory tax withholding requirements . rsus that are expected to vest are net of estimated future forfeitures . as of december 26 , 2015 , there was $ 1.8 billion in unrecognized compensation costs related to rsus granted under our equity incentive plans . we expect to recognize those costs over a weighted average period of 1.2 years . stock option awards as of december 26 , 2015 , options outstanding that have vested and are expected to vest were as follows : number of options ( in millions ) weighted average exercise weighted average remaining contractual ( in years ) aggregate intrinsic ( in millions ) . <table class='wikitable'><tr><td>1</td><td>-</td><td>number ofoptions ( in millions )</td><td>weightedaverageexerciseprice</td><td>weightedaverageremainingcontractualterm ( in years )</td><td>aggregateintrinsicvalue ( in millions )</td></tr><tr><td>2</td><td>vested</td><td>43.8</td><td>$ 21.07</td><td>1.8</td><td>$ 609</td></tr><tr><td>3</td><td>expected to vest</td><td>9.6</td><td>$ 24.07</td><td>4.1</td><td>$ 104</td></tr><tr><td>4</td><td>total</td><td>53.4</td><td>$ 21.61</td><td>2.2</td><td>$ 713</td></tr></table> aggregate intrinsic value represents the difference between the exercise price and $ 34.98 , the closing price of our common stock on december 24 , 2015 , as reported on the nasdaq global select market , for all in-the-money options outstanding . options outstanding that are expected to vest are net of estimated future option forfeitures . options with a fair value of $ 42 million completed vesting in 2015 ( $ 68 million in 2014 and $ 186 million in 2013 ) . as of december 26 , 2015 , there was $ 13 million in unrecognized compensation costs related to stock options granted under our equity incentive plans . we expect to recognize those costs over a weighted average period of approximately eight months. .
Question: as of december 26, 2015 , what were, in billions, the expected unrecognized compensation costs to be recognized per year?
Answer: 1.5
Question: and as of that same date, what percentage of the total stock option awards were expected to vest?

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