Prison terms handed down in lay judge trials this year conformed on average to 79 percent of prosecutors' demands, a level considered "standard" in judge-only trials.
But despite the average, an inconsistent pattern was seen in sentencing, with 20 of the 110 defendants who were imprisoned receiving a term equivalent to 90 percent or more of that demanded by prosecutors, while six were sentenced to terms equivalent to 50 percent or less.
Trials with lay judges had a 100 percent conviction rate.
Prison terms issued in judge-only trials are generally around 70 percent to 80 percent of prosecutors' demands.
Meanwhile, officials at 17 district courts intervened 21 times when lay judges were questioned at mews conferences after delivering verdicts, according to the tally.
Lay judge trials, which commenced in August, concluded for the year Friday, with convictions reached against all 142 defendants in 138 cases tried in 50 district courts.
Of the defendants who received prison sentences without suspension, one was sentenced to life, 12 got terms of 15 years or more, eight of between 10 years and less than 15 years, and 72 of between five years and less than 10 years.