C. Time of recording 4.26. Following BPM5 and the 1993 SNA, FATS
variables should, in principle, be measured and recorded on
an accrual basis. Flow variables, such as output and value
added, should be for the reference year. Stock variables,
such as assets and net worth, should be as of the end of the
reference year. Reference years should be defined on a
calendar year basis, if possible. Countries that can collect
and compile data only on a fiscal year or accounting year
basis should provide explanatory notes indicating this
practice, as well as information on the extent to which
fiscal and calendar years deviate in their FATS universe.