{"pre_text": ["equity in net earnings of affiliated companies equity income from the m-i swaco joint venture in 2010 represents eight months of equity income through the closing of the smith transaction .", "interest expense interest expense of $ 298 million in 2011 increased by $ 91 million compared to 2010 primarily due to the $ 4.6 billion of long-term debt that schlumberger issued during 2011 .", "interest expense of $ 207 million in 2010 decreased by $ 14 million compared to 2009 primarily due to a decline in the weighted average borrowing rates , from 3.9% ( 3.9 % ) to 3.2% ( 3.2 % ) .", "research & engineering and general & administrative expenses , as a percentage of revenue , were as follows: ."], "post_text": ["although research & engineering decreased as a percentage of revenue in 2011 as compared to 2010 and in 2010 compared to 2009 , it has increased in absolute dollars by $ 154 million and $ 117 million , respectively .", "these increases in absolute dollars were driven in large part by the impact of the smith acquisition .", "income taxes the schlumberger effective tax rate was 24.4% ( 24.4 % ) in 2011 , 17.3% ( 17.3 % ) in 2010 , and 19.6% ( 19.6 % ) in 2009 .", "the schlumberger effective tax rate is sensitive to the geographic mix of earnings .", "when the percentage of pretax earnings generated outside of north america increases , the schlumberger effective tax rate will generally decrease .", "conversely , when the percentage of pretax earnings generated outside of north america decreases , the schlumberger effective tax rate will generally increase .", "the effective tax rate for both 2011 and 2010 was impacted by the charges and credits described in note 3 to the consolidated financial statements .", "excluding the impact of these charges and credits , the effective tax rate in 2011 was 24.0% ( 24.0 % ) compared to 20.6% ( 20.6 % ) in 2010 .", "this increase in the effective tax rate , excluding the impact of the charges and credits , was primarily attributable to the fact that schlumberger generated a larger proportion of its pretax earnings in north america in 2011 as compared to 2010 as a result of improved market conditions and the effect of a full year 2019s activity from the acquired smith businesses .", "the effective tax rate for 2009 was also impacted by the charges and credits described in note 3 to the consolidated financial statements , but to a much lesser extent .", "excluding charges and credits , the effective tax rate in 2010 was 20.6% ( 20.6 % ) compared to 19.2% ( 19.2 % ) in 2009 .", "this increase is largely attributable to the geographic mix of earnings as well as the inclusion of four months 2019 results from the acquisition of smith , which served to increase the schlumberger effective tax charges and credits schlumberger recorded significant charges and credits in continuing operations during 2011 , 2010 and 2009 .", "these charges and credits , which are summarized below , are more fully described in note 3 to the consolidated financial statements. ."], "table": [["", "2011", "2010", "2009"], ["research & engineering", "2.7% ( 2.7 % )", "3.3% ( 3.3 % )", "3.5% ( 3.5 % )"], ["general & administrative", "1.1% ( 1.1 % )", "1.1% ( 1.1 % )", "1.1% ( 1.1 % )"]], "table_ori": [["", "2011", "2010", "2009"], ["Research & engineering", "2.7%", "3.3%", "3.5%"], ["General & administrative", "1.1%", "1.1%", "1.1%"]]}

Question: what was the growth rate of the schlumberger interest expense from 2010 to 2011
Evidence:
text_1: interest expense interest expense of $ 298 million in 2011 increased by $ 91 million compared to 2010 primarily due to the $ 4.6 billion of long-term debt that schlumberger issued during 2011 .
Program: subtract(298, 91), divide(91, #0)
Answer:
str_answer: 44%
exe_answer: 0.43961