Given the stream of consciousness rationale, provide a reasonable question and answer. Rationale: To answer this question, we should know that: The individual chapters have been collected and published in tankobon volumes by Hakusensha, with the series concluding with nineteen volumes released in Japan as of November 2013.
The question and answer:
This is a list of volumes and chapters for the manga series Vampire Knight by Matsuri Hino. The series premiered in the January 2005 issue of LaLa magazine and has officially ended. The individual chapters have been collected and published in tankobon volumes by Hakusensha, with the series concluding with nineteen volumes released in Japan as of November 2013. Vampire Knight was adapted into a twenty-six episode anime series by Studio Deen. The first season aired in Japan on TV Tokyo between April 7, 2008 and June 30, 2008. The second season, titled Vampire Knight Guilty, aired between October 6, 2008 and December 29, 2008. Two drama CDs and two Japanese light novels have also been created based on the manga series.

Based on this passage, how many volumes of vampire knight are there?
The answer is nineteen