Android >=4.4 have Google Chrome as their default browser which is auto-updatable as opposed to Android <=4.3. Recording results for the initial state of Google Chrome in Android 4.4.4 still makes sense as that's what its WebView uses and it's not auto-updatable; that's not the case with Android >=5, though.

Because of that, I think showing results for Android 5.0, 5.1 etc is misleading as that's not what people will be using. I think those columns should be removed; if Chrome for Android is expected to be tested, it should be tested as "Chrome on Android", not as a specific Android version. If it matters at all as those results will be identical with Chrome for Desktop.