A new report released by the United Nations, UN, on Wednesday points to fewer girls being subjected to female genital mutilation/cutting, FGM/C.
But UN agencies were on Thursday quick to call on countries to accelerate efforts to eliminate the life-threatening practice.
In 29 countries in Africa and the Middle East, where FGM/C is concentrated, 36 per cent of girls between the ages of 15 and 29 have been cut, compared to an estimated 53 per cent of women between 45 and 49.
This is according to the latest data released by the UN Children's Fund, UNICEF, and the UN Population Fund, UNFPA, on the occasion of the International Day of Zero Tolerance to FGM/C, being observed on Thursday.
The decline is particularly sharp in countries such as Kenya, where women are three times more likely to have been cut than girls.
In contrast, in Ethiopia, Kenya's northern neighbour, Afar Region has one of the world's highest prevalence rates FGM.
"This progress shows it is possible to end FGM/C," said UNICEF Executive Director, Anthony Lake.
He said FGM/C is deeply wrong and must end it to help millions of girls and women lead healthier lives.
FGM/C refers to a number of practices which involve cutting away part or all of a girl's external genitalia.
The practice - recognised globally as a violation of the human rights of girls and women - has no health benefits, causes severe pain and has several immediate and long-term health consequences, according to UN agencies.
The new estimates follow the adoption of a UN General Assembly resolution in December 2012 calling on member states to intensify efforts toward the complete elimination of FGM/C.
In addition, some 1,775 communities across Africa publicly declared their commitment to end FGM/C last year, the report said.
Since 2008, when the UNFPA-UNICEF Joint Programme on FGM/C was established, nearly 10,000 communities in 15 countries, representing about eight million people, have renounced the practice.
"Empowered women and girls are key to breaking the cycle of discrimination and violence and for the promotion and protection of human rights, including sexual and reproductive health and reproductive rights," said the Executive Director of UNFPA, Babatunde Osotimehin.
"Working with governments and civil societies, UNFPA and UNICEF have successfully implemented a human rights-based and culturally-sensitive approach to ending FGM/C," he said.
While progress has been made, the World Health Organisation, WHO, warned that some three million girls are at risk every year and 140 million have been affected by the practice.
This year, the agency is also focusing on addressing the trend of health-care providers being the ones performing FGM/C and thereby contributing to legitimise the practice.