Business enterprise expenditure on research and development characteristics, by geography and industry (x 1,000,000)

Business enterprise expenditure on research and development (BERD) and personnel by North American Industry Classification System (NAICS), for regions and provinces from 1997 to 2013.北美行业分类系统（NAICS）下，自1997年至2013年各区域及省份的企业研发支出（BERD）及人员构成。