Cov sau phau ntawv no 2014 tsab xov xwm tshawb nrhiav tau ua qhov kev tshawb fawb uas ua rau muaj 12 txoj kev tshawb nrhiav ntev txog kev coj ua tom qab cov tshuaj tiv thaiv kab mob sib txuas nrog tsawg kawg 5 xyoos 'kev soj qab taug. Lawv piav qhia, "ntawm qhov nruab nrab, cov tshuaj tiv thaiv tom qab ua kom pom kev ua kom rov qab muaj sia, nrog kev poob txhua xyoo ntawm 1.8% ntawm 5 xyoo thiab 2.4% tom qab 10 xyoo ntawm kev pabcuam."
Nyem qhov no mus nyeem tag nrho cov lus.
