in 2009 what was the percent of the total second generation capital expenditures associated with leasing costs
34| | duke realty corporation annual report 2010 value of $ 173.9 million for which our 80% ( 80 % ) share of net proceeds totaled $ 138.3 million . we expect , and are under contract , to sell additional buildings to duke/ princeton , llc by the end of the second quarter 2011 , subject to financing and other customary closing conditions . the total 2011 sale is expected to consist of 13 office buildings , totaling over 2.0 million square feet , with an agreed upon value of $ 342.8 million , and is expected to generate proceeds of $ 274.2 million for the 80% ( 80 % ) portion that we sell . uses of liquidity our principal uses of liquidity include the following : 2022 accretive property investment ; 2022 leasing/capital costs ; 2022 dividends and distributions to shareholders and unitholders ; 2022 long-term debt maturities ; 2022 repurchases of outstanding debt and preferred stock ; and 2022 other contractual obligations . property investment we evaluate development and acquisition opportunities based upon market outlook , supply and long-term growth potential . our ability to make future property investments is dependent upon our continued access to our longer-term sources of liquidity including the issuances of debt or equity securities as well as generating cash flow by disposing of selected properties . in light of current economic conditions , management continues to evaluate our investment priorities and is focused on accretive growth . we have continued to operate at a substantially reduced level of new development activity , as compared to recent years , and are focused on the core operations of our existing base of properties . leasing/capital costs tenant improvements and leasing costs to re-let rental space that had been previously under lease to tenants are referred to as second generation expenditures . building improvements that are not specific to any tenant but serve to improve integral components of our real estate properties are also second generation expenditures . one of our principal uses of our liquidity is to fund the second generation leasing/capital expenditures of our real estate investments . the following is a summary of our second generation capital expenditures for the years ended december 31 , 2010 , 2009 and 2008 , respectively ( in thousands ) : .

|  | 2010 | 2009 | 2008 |
| :--- | :--- | :--- | :--- |
| Second generation tenant improvements | $36,676 | $29,321 | $36,885 |
| Second generation leasing costs | 39,090 | 40,412 | 28,205 |
| Building improvements | 12,957 | 9,321 | 9,724 |
| Totals | $88,723 | $79,054 | $74,814 |

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second_gen_leasing_costs_2009 = 40412
second_gen_total_expenditures = 79054
percent_second_gen_leasing_costs = second_gen_leasing_costs_2009 / second_gen_total_expenditures
answer = percent_second_gen_leasing_costs * 100