Istanbul - The Turkish central bank's gross foreign exchange reserves increased by about $2.15 billion last week.According to calculations by Foreks based on the data from the central bank, reserves remained at $104.3 billion in the week ending Jan. 21, while they rose to $106.45 billion in the week ending Feb. 28. Gold reserves increased from $19.845 billion to $21.24 billion. Total reserves of the bank rose to $127.70 billion from $124.15 billion. Foreign exchange reserves stood at $70.75 billion at the end of 2008, $70.69 billion at the end of 2009, $80.70 billion at the end of 2010, $78.33 billion at the end of 2011, 100.32 billion at the end of 2012 and $112.3 billion at the end of 2013.