The various prizes are awarded yearly. Each recipient, or laureate, receives a gold medal, a diploma and a sum of money, which is decided by the Nobel Foundation. As of 2012, each prize was worth 8 million SEK.
(How do we pronounce "SEK"?)
Probably "ess eee kay" -- or "Swedish Kronor" --
http://www.google.com/cse?cx=partner-pub-2385172974335864%3Am04uw14or4v&ie=UTF-8&q=SEK&sa=Go#gsc.tab=0&gsc.q=SEK&gsc.page=1