As at 31 March 2015, the gross currency in circulation was S$37.0 billion (Chart 5). This was an increase of 9.2% from a year ago, as S$53.6 billion worth of notes and coins were issued to banks while S$50.3 billion were returned.

There was an increase in demand for "good-as-new" S$2 notes for the 2015 Lunar New Year. The total quantity of S$2 notes issued increased by 3.5% compared with 2014, but the number of brand new S$2 notes issued was slightly lower. The increase in demand for S$2 notes was met entirely by "good-as-new" notes.

To commemorate Singapore's 50th year of independence, MAS issued a series of three commemorative coins on 28 May 2015, comprising a S$2 cupro-nickel proof-like coin, a S$5 silver proof coin and a S$50 gold proof coin. The coins are themed "Education, Building Our Nation Together", reflecting the fundamental role that education has played in the transformation of a young nation. The cupro-nickel coin features basic education at the primary and secondary levels, which equips children with the foundational skills, character and values that prepare them for the future. The silver coin showcases higher education that provides students with multiple pathways to achieve their aspirations. The gold coin features Singapore's educators, who seek to bring out the best in every child. Singapore's multiracial diversity is also depicted in all three designs.

MAS will also issue a series of commemorative notes, comprising a S$50 note and five S$10 notes, all in polymer. The design of the commemorative notes draws inspiration from significant milestones and achievements in Singapore's history, and highlights values and aspirations that underpin Singapore's progress.