Hm... very difficult to stimate. I only know that I put 2-5H of daily activity into crypto (trading/ researching/investing, etc etc)

But let me clear this straight. Most of my stake has been bought, not earnt.

It's very very very difficult to achieve big figures of stake only relying on curation/posting rewards. In my case for example, I made around 10K HIVE in rewards, so the other 90K came from direct buys.