It is not really that surprising, I have held the view for a long time that 99% of the coins in the market are scams so I was expecting a number close to 100 and to see that only 60 are coded from scratch means that even my stance has been too soft on altcoins, truth to be told most coins are either copies, forks or derivatives from other coins and when that is the case your only hope is that hype takes over a particular coin so you can make money, but if you want to invest based on fundamentals then investing in coins that are actually being developed from scratch seems like your best bet.