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. Practically some elderly or rural Chinese-language speakers do not speak Standard Chinese fluently, if at all, but most are able to understand it. But the younger generations are almost all fluent in Standard Chinese, some to the extent of being unable to speak their local dialect.
Quote:
if mastery of Mandarin is defined as Grade 1-A (an error rate lower than 3%), the percentages were as follows: Beijing 90%, Shanghai 3%, Tianjin 25%, Guangzhou 0.5%, Dalian 10%, Xi'an 12%, Chengdu 1%, Nanjing 2%.[citation needed]
The requirements are very high, so your statistics means nothing.