At this moment there are already 18,000 registered works in Safe Creative and only one out of four chooses coyleft right options.
At the beginning of the project we would have bet for the opposite trend, convinced that a global register could become more useful for the copyleft options, in which, as some rights are free, it seems logical to suposse that they need more protection against not authorised uses.
It’s possible that the reason for this difference is because the works with all rights reserved are a majority, or because their authors prefer to register their rights, or … (?)
The percentages of licenses used in 18,000 registered works are:
72.8% – All rights reserved
12.9% – CC Attribution Non-commercial No Derivatives
6.3% – CC Attribution Non-commercial Share Alike
3.3% – CC Attribution Non-commercial
2.1% – CC Attribution
1.2% – CC Attribution Share Alike
0.7% – CC Attribution No Derivs
0.4 – GNU LGPL
0.3% – GNU GPL
0.1% – GNU FDL