(China Glass Network) The commodity index of float glass on January 15 is 9.031, flatted the January 14.  Compared to the peak point 108.65 of this period, it drops 14.12 percent. But to the lowest point 79.33 on April 22, 2012, it is 17.62 percent higher. (Note: the period refers Sep. 1, 2011 to now)