Let's say we are talking about the values of something (between different nations) and U.S. has the higher value between them.
Could we say:
The peak is leaded by U.S. with
U.S. leads with
The peak is by U.S.
Is any of these wrong? What would you use? (where a formal style is preferred).
note: the values are expressed by a chart using percentages
edit: e.g.: how many citizen use a smartphone