Konica-Minolta ceased film production about 2005/6. Although the Centuria range was the last new colour film range they introduced, the VX and VX Super films were sold alongside as an economy range, although originally the VX films came onto the market before the Centuria range. Your film is likely to have been manufactured somewhere between 1998 & 2006. I doubt if it was earlier than that. What results you get probably depends on how it was stored but I'd agree completely with what railwayman3 says above.