Originally Posted by Unregistered

Your numbers are too low for Singapore in this day & age. The more accurate understanding is

Very Low - earning lower than $1500 per mth
Low income - earning between $1500 to $3000
Middle-low - earning somewhat between $3000 to $7000
Middle - earning between $7000 to $14000
Middle-high - earning between $14000 to $22000
High - earning between $22000 to $40000
Very High - earning $40000 onwards
Ultra high - they don't use income... they use assets such as $100mil, etc.