In a recent video on MalaGIS's WeChat Channel showcasing national expressway mileage rankings, viewers noted the data appeared outdated. I've now updated the dataset using official National Bureau of Statistics records. Download the verified figures below.
PS: Follow MalaGIS on WeChat Channel, Douyin, and Bilibili for more geospatial content.
Data Overview
Source: National Bureau of Statistics of China
Coverage: 1993–2023
Format: CSV
Granularity: Province-level statistics
Unit: 10,000 km (Note: 1 unit = 10,000 km)
Visualization Guide
Simple visualization can be achieved in QGIS/ArcGIS. Below is a QGIS example: 
