Postgres Table Size - Mailing list pgsql-admin

I have a table like the following

create table test {
id int8,
lastupdate date,
balance numeric(12, 2) };


With an index:
create index ix_test(id, lastupdate);

This table currently has 6 million records.  I have done a vacuum full
and reindex this morning.  The file associated with this table is 1g
on disk.  This seems a lot high to me?  Am I wrong, any help would be
greatly appreciated.

Thank You,
Bo Stewart