Based on this news ...
household income from work in Singapore increased in nominal and real
terms in 2014, according to a report released on Monday by the
Department of Statistics.
Among resident employed households, median monthly household income
from work rose from S$7,870 in 2013 to S$8,290 last year, a 5.3 per cent
increase in nominal terms, or 4.1 per cent increase in real terms.
Taking household size into account, median monthly household income
from work per household member rose by 5.9 per cent in nominal terms, or
4.7 per cent in real terms in 2014.
Median household income in 2014 is $8.3K
$5K to $6K of passive income (60% to 72% of $8.3K) should be good enough for any retiring couples at 2014 dollar value to live comfortably without housing loan and without children education expenses to support. But, they must have enough medical insurance coverage, at least one year worth of emergency fund to meet any sudden liquidity needs and another few years worth holding in short-term fixed income assets.
It is about assets allocation to meet sudden and unexpected short-term draw-down without suffering large losses. It is extremely hard for retirees to recover from any large losses.
When we are not sure how to live; take the middle path. It is unlikely to be too wrong!