According to the market studies conducted from December 2011 to January 2012, from January to March 2014 and from December 2014 to February 2015, the total annual sale of ILB has dropped from 20.2 million in 2008 to 13.5 million in 2011, to 10.4 million in 2013 and to 9.3 million in 2014, representing a drop of 33.2%, 48.5% and 54%. The Government will closely monitor the effectiveness of this approach according to the available market condition of ILB and other relevant factors.