rate per thousand; per mille
Technical term used in statistics, demographics, and finance to express a ratio per 1,000 units, similar to 'per mille' (‰).
The birth rate is often expressed as a rate per thousand.
In this statistic, the death rate is shown per mille.
Compound of 千 (thousand), 分 (part, division), and 比 (ratio). The term follows the pattern of 百分率 (percentage) but for a base of 1,000.