a statistical trendP = 0.173
(2) A general decline of suicide rates from 1975 to 2016 (1975–1988, SMR: 7.05, CI: 2.24–17.00; 1989–2002, SMR: 3.12, CI: 1.91–4.48; 2003–2016, SMR: 1.95, CI: 1.45–2.57), though a statistical trend was not found ( P = 0.173).