How many border checkpoints are there in Yunnan?

16 entry-exit frontier inspection stations (Kunming Station, Ruili Station, Hekou Station, Wan Ding Station, Mohan Station, Tianbao Station, Jinshuihe Station, Jinghong Port Station, Xishuangbanna Station, Tengchong Station, Luoda Station, Qingshuihe Station, Maguan Station, Meng Kang Station, Lijiang Station and mangshi Airport Station) and 8 frontier management detachments (Wenshan).