How many years is the highest social security payment in Tibet?

Social security in Tibet is paid for two years at most. According to relevant information, the social security policy in Tibet can be paid for two years at the longest, that is to say, it is calculated according to the time period of payment, not the cumulative month. Xizang Autonomous Region, located in the southwest of People's Republic of China (PRC), is one of the five minority autonomous regions in China.