Detailed Instructions: This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.
Q: Passage: In May 2009, SAC reported that 1 billion was missing from Oil Stabilization Fund. Iranian President Mahmoud Ahmadinejad says the issue of the 'missing' $1 billion from the country's currency reserve fund is in fact an "accounting error." However, the claim prompted a firm response from SAC which rejected any talks of "accounting errors" and rebuked the government for providing "insufficient answers" in the case of the missing $1.058 billion oil money. SAC defended both methodology and accuracy of its work and revealed that there had been 1463 cases of infractions regarding the country's 2007-2008 budget. According to SAC's report, illegal payments to some government officials accounted for a large part of the infractions while there were also cases in which the government had acted against the articles of the budget law. In December 2010, Supreme Audit Court Director Abdolreza Rahmani Fazli said that the case was mentioned in a report presented to the Majlis and the report neither called it fraud nor said the money was missing, but only referred to it as "a deficit in the account".
Question: How many years after 1 billion dollars was reported missing was it refereed to as "a deficit in the account"?
Answer type: Number
A:
1.