Just to add an example: https://wrap.warwick.ac.uk/119646/13/WRAP-historical-analysis-national-subjective-wellbeing-digitized-books-Hills-2019.pdf https://wrap.

Just to add an example: https://wrap.warwick.ac.uk/119646/13/WRAP-historical-analysis-national-subjective-wellbeing-digitized-books-Hills-2019.pdf https://wrap.warwick.ac.uk/119646/13/WRAP-historical-analysi...