That figure would seem to be buttressed by this report:

The New York Times January 12, 2007
In Traffic's Jam, Who's Driving May Be Surprising By WILLIAM NEUMAN

It's a common enough thought among city drivers inching through
traffic: Everyone around me came from the suburbs, making my life
miserable. But it's wrong, because more than half the drivers who
crowd into Manhattan each workday come from the five boroughs.

That is only one fact about traffic in New York City that may surprise
some people. For example, 35 percent of government workers drive to
work, many because they have free parking. Also, one in five drivers
entering the busiest parts of Manhattan are only passing through, on
their way somewhere else.

Finally, many drivers say that they simply prefer the convenience and
solitude of their own vehicles and have found ways to get around the
worst congestion.

By examining a wealth of data collected by government agencies, a
detailed and often surprising portrait of traffic in New York City
emerges.

"There's a lot of myths, and when you look at the data, the myths
go pop, pop, pop, one by one," said Bruce Schaller, a transportation
consultant who has studied regional traffic patterns. . . .

One of the most prevalent beliefs to crumble beneath the data might be
called the suburban myth, the notion that suburbanites make up a
majority of the commuters who drive to work in Manhattan.

Census data show that more city residents than suburbanites drive to
work in Manhattan every day, according to Mr. Schaller. He estimated
that 263,000 people in 19 counties in and around New York City drive
regularly to jobs in Manhattan below 60th Street. Of those, 53 percent,
or 141,000, live in the five boroughs, Mr. Schaller said. The greatest
numbers are from Queens, with 51,300, and Brooklyn, with 33,400. About
23,900 auto commuters live in Manhattan, while 17,400 are from the
Bronx and 15,200 from Staten Island. The suburban area with the most
auto commuters to Manhattan is Nassau County, with 22,091 people
driving to work in the borough, followed by Bergen County, with 19,975.

When plotted on a map, the data make a striking picture, showing that
some of the densest concentrations of auto commuters are from the outer
fringes of Queens and Brooklyn, where access to subways is limited.

"The concentration of auto commuters is in areas that don't have
direct subway service," Mr. Schaller said. "So the travel time
advantage of driving is greater than it is in the rest of the city."
. . .

An annual survey conducted by the New York Metropolitan Transportation
Council, an association of government agencies involved in
transportation planning, recorded 810,000 vehicles (not including
buses) entering Manhattan below 60th Street on a single weekday in
2003. That figure has increased fairly steadily over the years, largely
in line with changes in the city's economy and population. The 2003
count was 6 percent greater than 1993, when 760,000 vehicles were
recorded, and 24 percent greater than 1978, when there were 649,000.

The number dropped after the terror attack in 2001 but has been rising
since. Partial data released from the 2004 count show a total of
815,000 vehicles entering the area of Manhattan covered by the survey.

This data help bust another myth. "A lot of people say, 'It's
those Jersey drivers,' " said Jeffrey M. Zupan, a senior fellow for
transportation at the Regional Plan Association, a group that studies
development and transportation issues. "But when you look at the
numbers, the Long Island sector is by far the largest sector where cars
are coming from into the city."

According to the 2003 data, 110,000 vehicles entered Manhattan through
the Holland and Lincoln Tunnels the day the survey was taken. An
additional 63,000 were recorded driving south on the West Side Highway,
and perhaps half of those might be considered to have come from New
Jersey, across the George Washington Bridge, Mr. Zupan said.

Many other vehicles entering from the north come from a more dispersed
area, including the Bronx, several northern counties and Connecticut.
The largest number of vehicles, however - 326,000, or 40 percent of
the total - entered Manhattan over the East River crossings, with
their drivers mostly from Queens, Brooklyn and Long Island.

Mr. Schaller uses data from a computer model developed by the
transportation council to estimate that about 80 percent of the
vehicles in the hub-bound tally had destinations within the Manhattan
core.

The model therefore suggests that almost one-fifth of the vehicles that
entered Manhattan in the 2003 count, or about 156,000, were just
passing through the borough. For many drivers, Manhattan is simply a
place between here and there.

"The shortest way, distance-wise, is always to go through
Manhattan," said Erick Lawson, a commercial diver who lives in
Somerset, N.J., and frequently works on underwater construction jobs in
Queens or on Long Island.

Early in the day, he often enjoys a smooth drive, well before the
morning rush, through the Lincoln Tunnel and across 34th Street to the
Midtown Tunnel. His homebound trip is a different story.

"It's almost always a disaster," Mr. Lawson said, explaining that
he frequently drives home across the Verrazano-Narrows Bridge and
through Staten Island to avoid Midtown.

Mr. Zupan pointed to data that show that while the overall number of
vehicles entering during a 24-hour period has generally been rising,
the number of vehicles entering from 7 to 10 a.m. has remained fairly
steady.

"You can't squeeze any more vehicles between 7 and 10 on the
bridges and tunnels," he said. "So that's constant and the growth
we've seen is in off-peak travel." . . .

A study conducted last year for the Partnership for New York City, a
business group, cited 2000 census data that showed about 35 percent of
government workers in Manhattan drive to work, compared with 14 percent
for those who work in finance. Kathryn S. Wylde, the president of the
group, said that many city workers drive because they can park at no
charge using parking placards obtained through their agencies.

The morning rush is dominated by cars carrying people to their jobs.
But later in the day, the mix of vehicles on the streets of Manhattan
includes more drivers who venture out for other reasons.

There was a TV story a few months ago that commuter trains used to return
from Grand Central empty.  Now there are quite a few people leaving the city
each day for a job.  But as for numbers, none were given, although there
were photos of semi-full trains leaving the city during the so-called rush
hour.

It is definitely more than the entire adult working population of the city.

Counts of people for transit is typically once for each boarding.  They may
count car trips the same way, but I don't know.  So 6.3M people on transit
is at most 3.15 people making a round trip with is 6.3M people as defined by
transit statistics.  If a person is getting off and back on in mid route for
some reason, that person is counted as four people.

I understand some transit agencies count the bus to and from the train is
sometimes counted as six people for a bus on both ends of the trip.

The emphasis of the story was the rapid growth of the reverse commuters
following jobs as they move out of NYC.  It seemed to be a major recent
trend in NYC according to the story.

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So?  Downtowns still employ more people per square mile than anywhere else
in the region.

Nope, my comments are about YOU and your use of phony numbers and DAMN
LIES, and numbers taken out of context.  No one else on any on the
lists we post at comes anywhere near the crapola and LYING you do.  As
I said, crawl back in your cave.

Randy