management 2019s discussion and analysis of financial condition and results of operations 2013 ( continued ) ( amounts in millions , except per share amounts ) the effect of foreign exchange rate changes on cash , cash equivalents and restricted cash included in the consolidated statements of cash flows resulted in an increase of $ 11.6 in 2016 , primarily a result of the brazilian real strengthening against the u.s . dollar as of december 31 , 2016 compared to december 31 , 2015. .
in 2018 , how many approximate shares would have been held for the entire year to pay the approximate $ 320 in dividends over the 12 months?
liquidity outlook we expect our cash flow from operations and existing cash and cash equivalents to be sufficient to meet our anticipated operating requirements at a minimum for the next twelve months . we also have a committed corporate credit facility , uncommitted lines of credit and a commercial paper program available to support our operating needs . we continue to maintain a disciplined approach to managing liquidity , with flexibility over significant uses of cash , including our capital expenditures , cash used for new acquisitions , our common stock repurchase program and our common stock dividends . from time to time , we evaluate market conditions and financing alternatives for opportunities to raise additional funds or otherwise improve our liquidity profile , enhance our financial flexibility and manage market risk . our ability to access the capital markets depends on a number of factors , which include those specific to us , such as our credit ratings , and those related to the financial markets , such as the amount or terms of available credit . there can be no guarantee that we would be able to access new sources of liquidity , or continue to access existing sources of liquidity , on commercially reasonable terms , or at all . funding requirements our most significant funding requirements include our operations , non-cancelable operating lease obligations , capital expenditures , acquisitions , common stock dividends , taxes and debt service . additionally , we may be required to make payments to minority shareholders in certain subsidiaries if they exercise their options to sell us their equity interests . notable funding requirements include : 2022 debt service 2013 as of december 31 , 2017 , we had outstanding short-term borrowings of $ 84.9 from our uncommitted lines of credit used primarily to fund seasonal working capital needs . the remainder of our debt is primarily long-term , with maturities scheduled through 2024 . see the table below for the maturity schedule of our long-term debt . 2022 acquisitions 2013 we paid cash of $ 29.7 , net of cash acquired of $ 7.1 , for acquisitions completed in 2017 . we also paid $ 0.9 in up-front payments and $ 100.8 in deferred payments for prior-year acquisitions as well as ownership increases in our consolidated subsidiaries . in addition to potential cash expenditures for new acquisitions , we expect to pay approximately $ 42.0 in 2018 related to prior acquisitions . we may also be required to pay approximately $ 33.0 in 2018 related to put options held by minority shareholders if exercised . we will continue to evaluate strategic opportunities to grow and continue to strengthen our market position , particularly in our digital and marketing services offerings , and to expand our presence in high-growth and key strategic world markets . 2022 dividends 2013 during 2017 , we paid four quarterly cash dividends of $ 0.18 per share on our common stock , which corresponded to aggregate dividend payments of $ 280.3 . on february 14 , 2018 , we announced that our board of directors ( the 201cboard 201d ) had declared a common stock cash dividend of $ 0.21 per share , payable on march 15 , 2018 to holders of record as of the close of business on march 1 , 2018 . assuming we pay a quarterly dividend of $ 0.21 per share and there is no significant change in the number of outstanding shares as of december 31 , 2017 , we would expect to pay approximately $ 320.0 over the next twelve months. .