How Libraries Stack Up

I am currently in the midst of compiling a literature review for my project in Library Planning, Marketing, and Assessment course. While looking through the literature about Amazon as a library vendor, I came across this quote, which I thought was a great comparative statement about the strong statistics surrounding libraries.

Lest we get too concerned I would draw your attention to yet another Online Computer Library Center (2003b) report that through a range of statistical data re-affirms the importance and comparative scale of library activity, primarily but not exclusively in a US context. The basis on which new opportunities can be built is immense:
US public library cardholders outnumber Amazon customers by almost 5 to 1;
each day, US libraries circulate nearly four times more items than Amazon handles;
one out of every six people in the world is a registered library user;
five times more people visit US public libraries each year than attend US professional and college football, basketball, baseball and hockey games combined;
there are over 1 million libraries worldwide with 16 billion volumes; and
there are some 690,000 librarians worldwide.

Brindley, L. (2006). Re-defining the library. Library Hi Tech, 24(4), 484-495.