Wayne, a good friend, just completed (well nearly) a trip around the
world. He e-mailed me some statistics which may be of interest to
other cruisers:

Left Langkawi, Malaysia on 17th January, 2012
Arrived Sebana Cove, Malaysia on 10th September, 2013
Traveled thru the Indian Ocean, Red Sea, Mediterranean Sea, Atlantic
Ocean, Caribbean, Pacific Ocean, Coral Sea, etc.
Traveled 25,313 NM from Langkawi to Sebana Cove. Visited 22 countries.
(As I have made the trip from Sebana to Langkawi a few times, 470
miles could be added to the total ... later)

Was in port 53% of the time and 47% at sea.
Ran the engine 1,813 hours.
Used 2,279 liters of diesel and paid USD $2,980 total for the fuel.
Estimated travel by wind only is approximately 77%
Estimated travel by engine & motor sailing 23%
Customs, Immigration, port fees and agent fees were USD $2,645
Spent on marinas and moorings USD $6,153
Mediterranean 3rd party insurance was USD $335
Suez Canal crossing fees were USD $255
Panama Canal crossing fees were USD $1,744

During the trip, I hauled out two times for anti-fouling and repaired,
updated & installed various pieces of equipment whose costs are not
reflected in any of the above amounts. Cruising permits for Panama &
Indonesia were included with customs, immigration fees. Fuel costs
were always derived from the price at the last port of call and varied
a lot with Europe having very high prices. Overall average fuel price
was USD $1.31 per liter. I am working on some of the expenses other
occurred during the trip and not included above:

For the power boat sailors he also comments:

Comparing this trip to a small trawler, one would have used about
19,000 liters of fuel and spent about USD $25,000 on fuel, methinks,
but a good trawler with a well designed propulsion system, with some
sails to take advantage of the downwind trade winds and not pushed too
hard might do better.

(As Wayne mentions, he left from Langkawi, Malaysia, which is on the
Malaysian - Thai border and he is now in Sebana Cove which is located
on the Malaysia - Singapore border so to have sailed around the world
he must sail from the southern tip of Malaysia to the northern edge.
Thus the "well nearly" comment :-)

--
Cheers,

Bruce in Bangkok