The head of CCID Evaluation, Dr. PU Songtao gave explaination to why the ranking for Cardano experienced great changes
**PU**: We recollect basic technical indicators every month. The change is usually minor unless major update was made. However, when it comes to creativity, the amount (not quality) of codes updated that month accounts for 30% of the overall score. Therefore, the code activity on GitHub of the month affects greatly the Creativity indicator. It’s also worth mentioning that the Bitcoin and Ethereum codes are usually updated frequently.