Generally speaking, the ratio of patients receiving treatment between different ninja villages is maintained at a relatively stable figure, recorded as a percentage.
For example, if a ninja village has 1,000 ninjas and an average of 100 ninjas receive psychological treatment each year, that figure is 10%.
In the past half year, however, the figures for Sunagakure have shown an upward trend, indicating that the number of ninjas suffering from psychological disorders is constantly increasing.
Chapter 152