Again on China's acquittal rate

Here’s an interesting piece from the Dui Hua Foundation on China’s acquittal rate (previously discussed on this blog here). I’m not sure it’s accurate in saying that China’s acquittal rate rose, though. It gives a figure of 1039 acquittals in 2015, which is the number provided in the SPC Work Report, but says this yields an acquittal rate of 0.075%. There are two problems with this:

1. The SPC Work Report lists a total of 1.232 million people convicted in the first instance. That would yield an acquittal rate of 0.084%. Of course, 1.232 million first-instance convictions + acquittals is not really the right denominator here; we want to know all final convictions + acquittals, but the SPC Work Report doesn’t seem to have that number. An acquittal rate of 0.075% implies an overall number of final convictions + acquittals of 1,384,294, implying total final convictions of 1,384,294 – 1039 = 1,383,255. But I don’t see where this number or an approximation of it appears in the Work Report. Did I miss it?
2. More than a third of the total acquittals were on self-prosecuted cases. There is every reason to believe that the acquittal rate for cases brought by the procuracy would be way lower, so they shouldn’t be mixed together.
3. To know whether the acquittal rate rose, we’d have to (a) figure out the answers to the above questions, (b) figure them out for previous years, and (c) satisfy ourselves that any change, given the extremely small numbers, is more than a meaningless statistical blip.