Perhaps my math is off, but I thought there would’ve been more? YC has often talked about how the average YC startup ‘dies’ and yet I’m sure they’ve funded at

Perhaps my math is off, but I thought there would’ve been more? YC has often talked about how the average YC startup ‘dies’ and yet I’m sure they’ve funded at least double the number of startups on this list. Is ‘dying’ also synonymous with ended up becoming a ‘lifestyle business’? Clarity would be appreciated on this!