July 24 acrylonitrile butadiene rubber goods parity index was 111.25, down 0.78 points yesterday, the highest point over period 116.62 points (2013-03-26) fell by 4.60%, compared with June 27, 2013 Low points 97.86 points, up 13.68 percent. (Note: The period refers 2013-01-01 date)