Based on the study Cross-Gender Social Ties Around the World, By Michael Bailey, Drew Johnston, Theresa Kuchler, Ayush Kumar, Johannes Stroebel.
More maps: https://pages.stern.nyu.edu//~jstroebe/PDF/BJKKS/_GenderTies/_Appendix.pdf
Aggregated data: https://data.humdata.org/dataset/cross-gender-ties
Interesting Maps. In OP's PDF Link is also a map of the middle east (it is as you expected it). The weird one I found was South Korea. It is a Democracy and pretty modern, but still pretty low values.
Be respectful
Interesting Maps. In OP's PDF Link is also a map of the middle east (it is as you expected it). The weird one I found was South Korea. It is a Democracy and pretty modern, but still pretty low values.