2016年托福寫作語法常見錯誤：中國經(jīng)濟改革

找出下列句子的一處語法錯誤：
    From 1978 until 2013, unprecedented growth occurred within the economy as it has been increased by 9.5% per year.
    適用考題：
    Government should focus its budgets more on environmental protection than on economic development. (2013.9.8)