* Country: School switching rates differ significantly between countries due to factors like school choice policies, demographics, and geographic mobility.
* Level of education: The rate is likely different for elementary, middle, and high school students.
* Definition of "switching schools": Does this include moves within a school district, transfers to different districts, or only changes to completely different school systems (e.g., public to private)? International moves also complicate the count.
* Data collection methods: Reliable, comprehensive data collection on school switching is challenging.
To find data, you'd need to specify a country or region and the level of education. Then, you could search for reports from ministries of education, national statistical agencies, or academic research on school mobility.