Dont blindly depend on any of these results. Its pure non sense in real world use. For example Avira Free do had the 99.9% detection rate and Avast Free had lower. If you are just depended on antivirus software alone then you are more likely to get infected by using Avira Free than Avast Free even though Avira Free had higher detection rate. There are some of my friends who just depended on Avira Free alone without any other security measures got infected easily where such occurrence is rare with Avast Free even though Avira had stronger detection rate. Real world protection is a lot different than what these charts says.