In terms of cost: from 2012-2014 total costs tend to decrease over the year, due to reduced interest rate expressed in 2013 decreased total 29,235 million (corresponding to decrease 10%) than in 2012; to the 2014 General chi off 1,110 million (corresponding to rising 0.44 percent) compared to the year 2013. In the total cost, the cost of interest rates still make up the majority, reduced interest expenses 2013 16% i.e. 36,372 million, through reduced interest cost 2014 16,865 million i.e. decreased 9%.
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