Business opening ratio by type at the three time periods.
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Note: The ��Total�� column is the sum of ��Completed survey��, ��Disconnect��, ��No answer��, and ��Assumed open�� in Table 1. The ��% open�� figures were derived by assuming ��Disconnect�� and ��No answer�� as businesses closed. Note that within the ��Completed survey�� category, a small portion of businesses remained closed even though they participated in the survey.
创建时间：
2015-12-02
