Center for Responsive Politics Category Code to NAICS crosswalk

This is an unmaintained, poorly documented crosswalk made in 2009 to connect the category codes from the Center for Responsive Politics (opensecrets.org) to industry NAICS codes. It may prove useful as a starting point for an updated crosswalk.本数据集为2009年编制的分类交叉映射表（crosswalk），当前未得到维护且文档记录不完善。该映射表用于将美国响应性政治中心（Center for Responsive Politics，官网opensecrets.org）的分类代码与北美行业分类系统（North American Industry Classification System，NAICS）的行业代码进行关联，可作为构建更新版分类交叉映射表的初始参考，具备一定实用价值。