Health care as a proportion of gdp has been increasing because

It has been increasing because there is newly invented medical equipment in the market that is so expensive, and so the GDP also is aligning proportionally to what’s the rate of the equipment. If we will not increase the GDP, invented medical equipment will be useless.

i don't get what you mean

explanation:

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.