pre_text: issuer purchases of equity securities during the three months ended december 31 , 2012 , we repurchased 619314 shares of our common stock for an aggregate of approximately $ 46.0 million , including commissions and fees , pursuant to our publicly announced stock repurchase program , as follows : period total number of shares purchased ( 1 ) average price paid per share ( 2 ) total number of shares purchased as part of publicly announced plans or programs approximate dollar value of shares that may yet be purchased under the plans or programs ( in millions ) .
post_text: ( 1 ) repurchases made pursuant to the $ 1.5 billion stock repurchase program approved by our board of directors in march 2011 ( the 201c2011 buyback 201d ) . under this program , our management is authorized to purchase shares from time to time through open market purchases or privately negotiated transactions at prevailing prices as permitted by securities laws and other legal requirements , and subject to market conditions and other factors . to facilitate repurchases , we make purchases pursuant to trading plans under rule 10b5-1 of the exchange act , which allows us to repurchase shares during periods when we otherwise might be prevented from doing so under insider trading laws or because of self-imposed trading blackout periods . this program may be discontinued at any time . ( 2 ) average price per share is calculated using the aggregate price , excluding commissions and fees . we continued to repurchase shares of our common stock pursuant to our 2011 buyback subsequent to december 31 , 2012 . between january 1 , 2013 and january 21 , 2013 , we repurchased an additional 15790 shares of our common stock for an aggregate of $ 1.2 million , including commissions and fees , pursuant to the 2011 buyback . as a result , as of january 21 , 2013 , we had repurchased a total of approximately 4.3 million shares of our common stock under the 2011 buyback for an aggregate of $ 245.2 million , including commissions and fees . we expect to continue to manage the pacing of the remaining $ 1.3 billion under the 2011 buyback in response to general market conditions and other relevant factors. .
table: Period Total Number of Shares Purchased(1) Average Price Paid per Share(2) Total Number of Shares Purchased as Part of Publicly Announced Plans orPrograms Approximate Dollar Value of Shares that May Yet be Purchased Under the Plans orPrograms  (in millions)
table: October 2012 27,524 $72.62 27,524 $1,300.1
table: November 2012 489,390 $74.22 489,390 $1,263.7
table: December 2012 102,400 $74.83 102,400 $1,256.1
table: Total Fourth Quarter 619,314 $74.25 619,314 $1,256.1
question: Analyse this data from a financial earnings document. what was the ratio of the purchase in december 2012 to the purchase in january 2013