Plotting out the ratio of Goals for and Against to visualise overall competitiveness.
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This got some comments on /r/soccer https://www.reddit.com/r/soccer/comments/batbcx/which_european_football_league_is_more/
and /r/dataisbeautiful https://www.reddit.com/r/dataisbeautiful/comments/bat38x/which_european_football_league_is_more/
@eoin suggestions to improve? Besides explanatory text obviously.
Can you get data for the last 10 years for each league - if you plot the entirety you will have much more data to see if the trend is linear or slightly exponential?