Financial report context:
the goldman sachs group , inc . and subsidiaries management 2019s discussion and analysis operating expenses our operating expenses are primarily influenced by compensation , headcount and levels of business activity . compensation and benefits includes salaries , discretionary compensation , amortization of equity awards and other items such as benefits . discretionary compensation is significantly impacted by , among other factors , the level of net revenues , overall financial performance , prevailing labor markets , business mix , the structure of our share- based compensation programs and the external environment . in addition , see 201cuse of estimates 201d for additional information about expenses that may arise from litigation and regulatory proceedings . the table below presents our operating expenses and total staff ( which includes employees , consultants and temporary staff ) . .

Financial table:
$ in millions: compensation and benefits; year ended december 2015: $ 12678; year ended december 2014: $ 12691; year ended december 2013: $ 12613
$ in millions: brokerage clearing exchange anddistribution fees; year ended december 2015: 2576; year ended december 2014: 2501; year ended december 2013: 2341
$ in millions: market development; year ended december 2015: 557; year ended december 2014: 549; year ended december 2013: 541
$ in millions: communications and technology; year ended december 2015: 806; year ended december 2014: 779; year ended december 2013: 776
$ in millions: depreciation and amortization; year ended december 2015: 991; year ended december 2014: 1337; year ended december 2013: 1322
$ in millions: occupancy; year ended december 2015: 772; year ended december 2014: 827; year ended december 2013: 839
$ in millions: professional fees; year ended december 2015: 963; year ended december 2014: 902; year ended december 2013: 930
$ in millions: insurance reserves1; year ended december 2015: 2014; year ended december 2014: 2014; year ended december 2013: 176
$ in millions: other expenses2; year ended december 2015: 5699; year ended december 2014: 2585; year ended december 2013: 2931
$ in millions: total non-compensation expenses; year ended december 2015: 12364; year ended december 2014: 9480; year ended december 2013: 9856
$ in millions: total operating expenses; year ended december 2015: $ 25042; year ended december 2014: $ 22171; year ended december 2013: $ 22469
$ in millions: total staff at period-end; year ended december 2015: 36800; year ended december 2014: 34000; year ended december 2013: 32900

Additional report context:
1 . consists of changes in reserves related to our americas reinsurance business , including interest credited to policyholder account balances , and expenses related to property catastrophe reinsurance claims . in april 2013 , we completed the sale of a majority stake in our americas reinsurance business and no longer consolidate this business . 2 . includes provisions of $ 3.37 billion recorded during 2015 for the agreement in principle with the rmbs working group . see note 27 to the consolidated financial statements for further information about this agreement in principle . 2015 versus 2014 . operating expenses on the consolidated statements of earnings were $ 25.04 billion for 2015 , 13% ( 13 % ) higher than 2014 . compensation and benefits expenses on the consolidated statements of earnings were $ 12.68 billion for 2015 , essentially unchanged compared with 2014 . the ratio of compensation and benefits to net revenues for 2015 was 37.5% ( 37.5 % ) compared with 36.8% ( 36.8 % ) for 2014 . total staff increased 8% ( 8 % ) during 2015 , primarily due to activity levels in certain businesses and continued investment in regulatory compliance . non-compensation expenses on the consolidated statements of earnings were $ 12.36 billion for 2015 , 30% ( 30 % ) higher than 2014 , due to significantly higher net provisions for mortgage-related litigation and regulatory matters , which are included in other expenses . this increase was partially offset by lower depreciation and amortization expenses , primarily reflecting lower impairment charges related to consolidated investments , and a reduction in expenses related to the sale of metro in the fourth quarter of 2014 . net provisions for litigation and regulatory proceedings for 2015 were $ 4.01 billion compared with $ 754 million for 2014 ( both primarily comprised of net provisions for mortgage-related matters ) . 2015 included a $ 148 million charitable contribution to goldman sachs gives , our donor-advised fund . compensation was reduced to fund this charitable contribution to goldman sachs gives . the firm asks its participating managing directors to make recommendations regarding potential charitable recipients for this contribution . 2014 versus 2013 . operating expenses on the consolidated statements of earnings were $ 22.17 billion for 2014 , essentially unchanged compared with 2013 . compensation and benefits expenses on the consolidated statements of earnings were $ 12.69 billion for 2014 , essentially unchanged compared with 2013 . the ratio of compensation and benefits to net revenues for 2014 was 36.8% ( 36.8 % ) compared with 36.9% ( 36.9 % ) for 2013 . total staff increased 3% ( 3 % ) during 2014 . non-compensation expenses on the consolidated statements of earnings were $ 9.48 billion for 2014 , 4% ( 4 % ) lower than 2013 . the decrease compared with 2013 included a decrease in other expenses , due to lower net provisions for litigation and regulatory proceedings and lower operating expenses related to consolidated investments , as well as a decline in insurance reserves , reflecting the sale of our americas reinsurance business in 2013 . these decreases were partially offset by an increase in brokerage , clearing , exchange and distribution fees . net provisions for litigation and regulatory proceedings for 2014 were $ 754 million compared with $ 962 million for 2013 ( both primarily comprised of net provisions for mortgage-related matters ) . 2014 included a charitable contribution of $ 137 million to goldman sachs gives , our donor-advised fund . compensation was reduced to fund this charitable contribution to goldman sachs gives . the firm asks its participating managing directors to make recommendations regarding potential charitable recipients for this contribution . 58 goldman sachs 2015 form 10-k .

Question: what portion of the total operating expense is related to compensation and benefits in 2015?
Answer: 50.6%