So almost 5% of global production of Helium? Add to that the fact that helium tends to leak at a much higher rate than any gas, and that sounds prohibitively ex

So almost 5% of global production of Helium? Add to that the fact that helium tends to leak at a much higher rate than any gas, and that sounds prohibitively expensive. Especially since the current price of Helium is artificially low, and it's not a renewable resource at current extraction rates, so the price is not going to remain so low in the future.