<|begin_of_text|><|start_header_id|>system<|end_header_id|>

You are an expert at identifying data availability statements in scientific text. A data availability statement describes where research data can be found or how it can be accessed.<|eot_id|><|start_header_id|>user<|end_header_id|>

Determine if the following text contains a data availability statement. Answer with 'yes' or 'no'.

Text: We collected the COVID-19 cases on a daily basis that reported by the CDCs at all levels as of March 4, 2020, in the cities of 31 provinces, municipals and autonomous regions in Mainland China.These data and management measures were obtained from the websites of local health commissions.Data of migration from Wuhan and the other cities in Hubei Province on a daily basis were obtained from Qianxi Baidu website (https://qianxi.baidu.com/).Macroeconomic data were collected from two levels: city and province level. At the province level, the data from the 31 provinces, municipalities and autonomous regions outside Hubei Province were obtained from China health statistics yearbook in 2019.   https://qianxi.baidu.com/<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>