Specialized design services, summary statistics

The summary statistics by North American Industry Classification System (NAICS) which include: operating revenue (dollars x 1,000,000), operating expenses (dollars x 1,000,000), and operating profit margin (by percent), of specialized design services (NAICS 5414), annual, for five years of data.北美行业分类系统（NAICS）的汇总统计，包括专项设计服务（NAICS 5414）的运营收入（美元乘以100万）、运营费用（美元乘以100万）以及运营利润率（百分比），数据涵盖五年年度数据。