The percentage of Eskimos that have seen an igloo is zero.
Given the following information, I would say the percentage of Inuit that have
seen an igloo is 100 percent.
Eskimos refer to themselves as Inuit, 'The People.' Residing from the Aleutian
Islands west of Alaska, across arctic Canada and into Greenland, the Inuit
represent the most widespread native population in the world. They have very
similar cultural and physical characteristics, however, because the environment
is so similar within this massive region. Mainly coastal, the area consists of
shallow basins with rivers flowing through and many islands covered with
permanent ice and mountain glaciers. The treeless shores provide no wind
protection, making travel virtually impossible at times. Temperatures are below
freezing for eight or nine months of the year. And total precipitation is so
slight that the area nearly qualifies as desert.
The Inuit have survived in one of the world's harshest environments for millennia.
Igloo also spelled Iglu, also called APUTIAK, temporary winter home or hunting
ground dwelling of Canadian and Greenland Inuit. The term igloo, or iglu, from
Inuit igdlu ('house'), is related to Iglulik, a town, and Iglulirmiut, an Inuit
people, both on an island of the same name. The igloo, usually made from blocks
of snow and dome-shaped, is used only in the area between the Mackenzie River
delta and Labrador where, in the summer, Inuit live in sealskin or, more recently,
cloth tents.
https://www.britannica.com/technology/igloo According to Stats Can 1996 census, the Inuit population totaled 41,080.
http://www.statcan.ca/english/census96/jan13/abor4.htm Though many people believe that all Inuit people live in snow igloos, only those
of central and Western Canada used them as long-term winter homes. Almost all
Inuit live in animal skin tents in the summer, and most dwell in sod houses in
the winter. The Canadian Inuit live in igloos for months at a time, with only
soapstone lamps for warmth.
http://www.arcticblast.polarhusky.com/igloo A long time ago igloos were used instead of houses. They are made of snow.
Igloos have lots of blocks. Inside an igloo it is warm from the stove. We use
panaks to make igloos. Today we don't live in igloos. Igloos can be use for
shelter from storms. The first Inuit people lived in igloos. Igloos are nice.
Some people down south think we still live in igloos but we don't anymore. In
contests we build igloos. The people further up north mostly use igloos when
they go out on land because they are passed the tree line. They use igloos
because there are less trees. We use tents because we have trees. Sometimes we
make igloos but it is rare.
http://www.kativik.qc.ca/ulluriaq/Nunavik/inuitlife/whatis/what_is4.htm I do not believe there is a record of how many actually still live in an igloo
for all or part of the year.