Without any references to facts other than the writers own experience.
Any peak in popularity can not be found when you look at the actual numbers: http://githut.info
Any peak in popularity can not be found when you look at the actual numbers: http://githut.info
Open source websites are also problematic because they don't capture what a lot of businesses are doing (which is Java, the replacement for COBOL).
But lousy data is better than no data at all.