Well i have 7 sites and out of those sites each one has about 6-7 pages and out of those pages 5-6 are indexed regularly. So you can say about 42 pages are indexed.
You can check this in Google webmaster tool. Just signup with your website and check how many page is indexed and how many not indexed.. also why not indexed
I would check google webmaster tools. All pages in general are indexed unless you specify to block certain pages with a robots.txt file
I have many sites in different niches but largest of the websites has 7000 indexed pages in Google including ~4000 unique, well written articles.
Almost all pages are indexed on my site but I haven't checked the exact number because my site is updated frequently.