pre_text: net unfunded credit commitments .
post_text: commitments to extend credit represent arrangements to lend funds subject to specified contractual conditions . at december 31 , 2007 , commercial commitments are reported net of $ 8.9 billion of participations , assignments and syndications , primarily to financial services companies . the comparable amount at december 31 , 2006 was $ 8.3 billion . commitments generally have fixed expiration dates , may require payment of a fee , and contain termination clauses in the event the customer 2019s credit quality deteriorates . based on our historical experience , most commitments expire unfunded , and therefore cash requirements are substantially less than the total commitment . consumer home equity lines of credit accounted for 80% ( 80 % ) of consumer unfunded credit commitments . unfunded credit commitments related to market street totaled $ 8.8 billion at december 31 , 2007 and $ 5.6 billion at december 31 , 2006 and are included in the preceding table primarily within the 201ccommercial 201d and 201cconsumer 201d categories . note 24 commitments and guarantees includes information regarding standby letters of credit and bankers 2019 acceptances . at december 31 , 2007 , the largest industry concentration was for general medical and surgical hospitals , which accounted for approximately 5% ( 5 % ) of the total letters of credit and bankers 2019 acceptances . at december 31 , 2007 , we pledged $ 1.6 billion of loans to the federal reserve bank ( 201cfrb 201d ) and $ 33.5 billion of loans to the federal home loan bank ( 201cfhlb 201d ) as collateral for the contingent ability to borrow , if necessary . certain directors and executive officers of pnc and its subsidiaries , as well as certain affiliated companies of these directors and officers , were customers of and had loans with subsidiary banks in the ordinary course of business . all such loans were on substantially the same terms , including interest rates and collateral , as those prevailing at the time for comparable transactions with other customers and did not involve more than a normal risk of collectibility or present other unfavorable features . the aggregate principal amounts of these loans were $ 13 million at december 31 , 2007 and $ 18 million at december 31 , 2006 . during 2007 , new loans of $ 48 million were funded and repayments totaled $ 53 million. .
table: December 31 - in millions 2007 2006
table: Commercial $39,171 $31,009
table: Consumer 10,875 10,495
table: Commercial real estate 2,734 2,752
table: Other 567 579
table: Total $53,347 $44,835
question: Analyse this data from a financial earnings document. what was the change in commercial commitments net of participations , assignments and syndications , primarily to financial services companies in 2007 compared to 2006 in billions?