According to Singapore Statistics Department data, By end
2012
http://www.singstat.gov.sg/statistics/latest_data.html#12

Our total,population is 5.3124
Million, And 3.2851 Million is Singapore Citizens.
i.e. PR and FT is 2.0273
Million, It's about 38.16% of Singapore Population.
Everyday (Except) I start at
about 0400pm and stop at about 0300am , For 10 Hours on OTR,
Average I do about 15~18 Trip.
Out of this 15~18 Trip,
Average about 10~12 Trip, The Pax is Foreigner,
It may be Tourist , Expat (AMK, Jap etc), Retail Store Staff
(Pinoy), "Professionals~~ChinNan中国菜, Vietcong越南妹", Overtime
Construction Worker (Ah Nia or Ah Tiong), F & B Staff (Ah Tiong
or Pinoy) etc.
How about your daily Pax ration
?????
How
about,
One
day, this 38% missing from our population, will it affect your
business ???
Maybe cos you drive night and mostly, Sinkaporeans dun like to work
night shift or second shift type. So, pax likely foreign, if they
are retail and F&B staff who finish their work late at
night.