title: Merging data from approx. 70 tables in R
body: <p>I have country-by-country reports of 10 diffrent companies over a time frame of 7 years (70 tables of excel data). I am not really good or creative in formating information in a user friendly way. How can I illustrate develompments of certain ratios from each company over the 7 years and as well illustrate the development of that ratio averaged over all the 10 companies?</p>
  <p>Thanks a lot in advance.</p>