Between November, 23, 2009, when Singapore first began registering .sg names in Chinese characters, and June 10, 2010, when registrations of Chinese-character .sg domain names opened to all without any additional fee, only 1,024 such names were registered, or just 0.88 percent of all .sg domain names. This apparently includes not just second-level domains (e.g., 中心.sg) but also third-level domains (e.g., 中心.com.sg).
The percentage will likely rise in the coming months, as the process has only recently opened to everyone on a first-come, first-served basis. But, still, demand for such names in Singapore has so far been underwhelming.
A bit more information:
Registrations were accepted in phases, with registrations for government organizations starting on Nov. 23, 2009. Beginning in January, SGNIC began accepting domain name registrations from trademark holders.
During the third phase, the general public was allowed to register domain names starting on March 25, but applicants were charged a “priority fee” of S$100 (US$72) for each domain name, with domain names sought by several applicants awarded to the highest bidder.
In all three phases, applicants could apply for a domain name made up of Chinese numbers or a name with just one Chinese character for a fee of S$500 [US$360]….
The fourth and final phase began on June 10, with SGNIC accepting domain name applications on a first-come, first-served basis. The S$100 priority fee is no longer required, but applicants are no longer allowed to register domain names using Chinese numbers or names with just one Chinese character….
When IDA announced the introduction of Chinese-language domain names last year, SGNIC said the effort was partly intended to help Singaporean businesses target the Chinese market.
source: Singapore registers 1,000 Chinese-language domain names, IDG News Service, June 23, 2010