The correct answer is 10%.
Sometimes these numbers were higher, sometimes they were lower, but in general, good economic years hovered around 10% which was not so bad for the society since it's impossible to reduce it to 0% and it is also easy for it to go way over 10%, so the 10% mark was acceptable for numerous countries in Europe.
They are based in England
Trickle-down economics, or “trickle-down theory,” states that tax breaks and benefits for corporations and the wealthy will trickle down to everyone else. It argues for income and capital gains tax breaks or other financial benefits to large businesses, investors, and entrepreneurs to stimulate economic growth. The argument hinges on two assumptions: All members of society benefit from growth, and growth is most likely to come from those with the resources and skills to increase productive output.
