considered to be the primary beneficiary of either entity and have therefore deconsolidated both entities . at december 31 , 2010 , we held a 36% ( 36 % ) interest in juniperus which is accounted for using the equity method of accounting . our potential loss at december 31 , 2010 is limited to our investment of $ 73 million in juniperus , which is recorded in investments in the consolidated statements of financial position . we have not provided any financing to juniperus other than previously contractually required amounts . juniperus and jchl had combined assets and liabilities of $ 121 million and $ 22 million , respectively , at december 31 , 2008 . for the year ended december 31 , 2009 , we recognized $ 36 million of pretax income from juniperus and jchl . we recognized $ 16 million of after-tax income , after allocating the appropriate share of net income to the non-controlling interests . we previously owned an 85% ( 85 % ) economic equity interest in globe re limited ( 2018 2018globe re 2019 2019 ) , a vie , which provided reinsurance coverage for a defined portfolio of property catastrophe reinsurance contracts underwritten by a third party for a limited period which ended june 1 , 2009 . we consolidated globe re as we were deemed to be the primary beneficiary . in connection with the winding up of its operations , globe re repaid its $ 100 million of short-term debt and our equity investment from available cash in 2009 . we recognized $ 2 million of after-tax income from globe re in 2009 , taking into account the share of net income attributable to non-controlling interests . globe re was fully liquidated in the third quarter of 2009 . review by segment general we serve clients through the following segments : 2022 risk solutions ( formerly risk and insurance brokerage services ) acts as an advisor and insurance and reinsurance broker , helping clients manage their risks , via consultation , as well as negotiation and placement of insurance risk with insurance carriers through our global distribution network . 2022 hr solutions ( formerly consulting ) partners with organizations to solve their most complex benefits , talent and related financial challenges , and improve business performance by designing , implementing , communicating and administering a wide range of human capital , retirement , investment management , health care , compensation and talent management strategies . risk solutions .

2010: revenue: 6423
operating income: 1194
operating margin: -18.6
2009: revenue: 6305
operating income: 900
operating margin: -14.3
2008: revenue: 6197
operating income: 846
operating margin: -13.7

the demand for property and casualty insurance generally rises as the overall level of economic activity increases and generally falls as such activity decreases , affecting both the commissions and fees generated by our brokerage business . the economic activity that impacts property and casualty insurance is described as exposure units , and is most closely correlated with employment levels , corporate revenue and asset values . during 2010 we continued to see a 2018 2018soft market 2019 2019 , which began in 2007 , in our retail brokerage product line . in a soft market , premium rates flatten or decrease , along with commission revenues , due to increased competition for market share among insurance carriers or increased underwriting capacity . changes in premiums have a direct and potentially material impact on the insurance brokerage industry , as commission revenues are generally based on a percentage of the .

Questions:
what was the sum of revenues for 2009 and 2010?
what were revenues in 2008?
what is the total sum including 2008?
what is the average per year?

Answers:
12728
6197
18925
6308.3