1960 आरो 1970 फोराव मोखासे हादोरफोरा 10 बोसोर एबा खमसिन समाव गावसोरनि बिमायारि थैनायखौ खावसेसिम खमायदों ।
During the 1960s and 1970s some countries did reduce their maternal mortality by half over a period of 10 years or less .