I really can't tell for sure. Although the indexing process takes time there's no guarantee Google will index all the URLs submitted in a sitemap.
A page may not appear in the index if Google thinks that a page isn't worth to get indexed (duplicate content, poor content, page not accessible,...).
...Google doesn't guarantee that we'll crawl or index all of your URLs. However, we use the data in your Sitemap to learn about your site's structure, which will allow us to improve our crawler schedule and do a better job crawling your site...
...Although we index billions of webpages... we don't guarantee that we'll crawl all of the pages of a particular site.
Google doesn't crawl all the pages on the web, and we don't index all the pages we crawl. It's perfectly normal for not all the pages on a site to be indexed...
Also read the auto-response (second post) below