I've never paid attention to having titles on every page, let alone unique titles.
I pay some attention to titles, but don't really know how well I'm doing.
I pay a lot of attention to titles, but don't really know how well I'm doing.
I keep track, and have a large number of issues (5% or more)
I keep track, and have a fair number of issues (2% to 4%).
I keep close track, but do have a few issues to handle (1% of pages or so).
I have a perfect site from this perspective - titles on every page all unique.