Machine-assisted translation. The original Russian publication is linked below.
Here's the statistics. During the year of study, this is from 1 to 4 years, 29 people passed. Not everyone went in the first place. Someone joined the group later. The band changed all the time. Some left, others came. It was a turnover. In the whole year, 3 people passed from start to finish (it turns out, 5). This is 1 in 10…