MVA指数一般是用来衡量制造业的部分在总的GDP的比重变化,用来分析制造业在GDP里的比重增长和GDP的结构,一般是以百分比的形式出现。Value added of manufacturing industries is used to measure growth and structure, but not the level.
https://stat.unido.org/content/learning-center/what-is-manufacturing-value-added%253f#