Long-term storage reliability of various media
Solution 1:
There' some fine article at LinuxTECH.NET on Best reliable long-term data storage media which might answer your question at least partly. Other sources of interest may include:
- A slide on Long Term Data Storage 2007
- Server Fault's Q&A Tape vs SSDs backups regarding long-term storage reliability
- SuperUser: What medium should be used for long term, high volume, data storage (archival)?
- SuperUser: How much time until an unused hard drive loses its data?
- SuperUser: Covenience/Cost/Life expectancy of storage media
- A PDF about Data Reliability by Hie Electronics
- ServerFault's Q&A Cost effective, long term archival of video and image data?
- A PDF on A Fresh Look at the Reliability of Long-term Digital Storage
- Another PDF: Understanding Data Survivability in Archival Storage Systems
- Stability Comparison of Recordable Optical Discs
- Long-Term Usability of Optical Media (maybe a bid broad and no specific statistic details)
Furthermore, it might be worth to investigate some of the following Wikipedia article's references:
- Digital preservation
- Enterprise content management
- Data storage device
- Archival science
Each of the mentioned documents contains pieces of answers to your question -- though none may be a summary including overall statistics.
EDIT:
A quite comprehensive one is Challenges of Long-Term Digital Archiving: A Survey -- this might include almost all information you are looking for. As probably does the mdisc china lake study...
Solution 2:
The only thing I could find is "Langzeitarchivierung" on the German Wikipedia. It has less information than you asked for, but a lot of references.
http://de.wikipedia.org/wiki/Langzeitarchivierung
English Translation with Google Translate