MACAO, Dec. 20 (Xinhua) -- Chinese President Xi Jinping said that over the past 20 years Macao has achieved the best ever development in history.

The president attributed the achievement to the concerted effort made by the Macao Special Administrative Region government together with people from all walks of life, the support of the central government and the mainland, as well as the leadership of Ho Hau Wah and Chui Sai On.

Xi made the remarks Friday at a gathering in celebration of the 20th anniversary of Macao's return to the motherland.