Too much! As a reviewer, I can tell you that it would be much better for you to have a total of three (a maximum of five) artworks (figures + tables) per peper. Please consider that top journals nowdays try to shorten a length of each article in order to increase a circulation rate (i.e. a number of read and being cited).
It depends upon your contribution of research work but as possible you consize the table in the form of graph as per opinion as short paper can read more as compared to large .
Some journals restrict the size of articles, for example, 4000 words (about 20 typed pages; double-spaced) in the case of a full-length article and 1000 words (about 5 typed pages) in the case of short notes or short communications. Usually, half page table or illustration is taken as equivalent to 200 words. In my opinion, 6 graphs and 4 tables are a little high for a full length paper. Before taking a decision, read carefully the "instructions to authors".