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Authors
Li, Cheng https://orcid.org/0000-0001-7892-7242
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Funding
Funding for this research was provided by:
National Bureau of Statistics of China (RKPCZB16)
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Article History
Received: 6 April 2023
Accepted: 12 September 2023
First Online: 2 October 2023
Declarations
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: The author claims no conflicts of interests.
