An Empirical Study Based on the Impact of Smart Sensor System on Rural Relative Poverty

Table 4

Changes in education level (unit: %).

Education level	2014	2020
Illiteracy	23.8	13.8
Primary school	46.0	43.2
Junior high school	24.3	34.0
High school	5.5	7.4
College	0.4	1.3
Undergraduate	0.04	0.37
Postgraduate	0.006	0.01