All
of
the
37
had
at
least
$3
billion
in
assets
and
eight
had
more
than
$100
bilion,
it
said.
SSGA
said
its
study
of
the
companies,
many
of
which
it
does
business
with,
showed
about
70%
of
the
wealth
held
by
the
state-sponsored
funds
came
from
oil
and
gas
revenues.
Only
13
of
the
37
SWFs
were
not
based
on
commodity
wealth.
Asia
had
the
largest
number
of
SWFs
at
13,
but
the
10
funds
based
in
the
Middle
East
had
nearly
half
the
wealth,
or
46%,
between
them.
SSGA
said
SWFs
were…