Due to a lack of reliable data on capital by sector, we need to focus on labor productivity. For this exercise, I divide GDP in four sectors: agriculture, the manufacturing industry, the nonmanufacturing industry, and services.
For the period under consideration, on average, total labor productivity dropped 0.3 percent per year, with rises in the first two segments of the economy and falls in the latter two. Without an attempt to provide a formal explanation of the contrasting sectorial development, the following conjectures are relatively safe.