Made a quick data visualization: https://twitter.com/breckyunits/status/1414002397932756996
Edit: Please disregard the above, as I just realised that you generated more than one plot and one is per capita!
Top 10 in the paper (from appendix):
Iceland, Switzerland, Norway, Sweden, Finland, Denmark, Netherlands, Canada, Estonia, Luxembourg
Top 10 happiest countries:
Finland, Denmark, Switzerland, Iceland, Norway, Netherlands, Sweden, New Zealand, Austria, Luxembourg