We took a list of the top 50 countries who have the most bitcoin nodes from https://bitnodes.earn.com
An then compiled that data alongside GDP per capita. https://www.cia.gov/library/publications/the-world-factbook/rankorder/2004rank.html (data isn't from 2004)

We have then grouped the countries into 3 tiers by GDP/capita. 50k+, 30k+, 0+

T1 - US,DE,NL,SG,HK,CH,SE,IE,NO
T2 - FR,CA,GB,JP,KR,AU,CZ,IT,ES,LT,FI,AT,BE,NZ,IL,DK,SK,SI,TW,PT,
T3 - CN,RU,UA,PL,BR,BG,RO,TH,MY,HU,ZA,TR,GR,AR,LV,IN,VN,MX

Raw Data
1. United States,2467,$59500
2. Germany,1742,$50200
3. China,784,$16600
4. France,674,$43600
5. Netherlands,492,$53600
6. Canada,389,$48100
7. n/a,359,$false
8. Russian Federation,317,$27900
9. United Kingdom (GB),287,$43600
10. Japan,210,$42700
11. Singapore,191,$90500
12. Korea, Republic of,171,$39400
13. Hong Kong,154,$61000
14. Switzerland (CH),140,$61400
15. Australia,127,$49900
16. Sweden,95,$51300
17. Ukraine,91,$8700
18. Poland,80,$29300
19. Czech Republic,71,$35200
20. Italy,68,$38000
21. Ireland,66,$72600
22. Spain,63,$38200
23. Lithuania (LT),63,$31900
24. Finland,57,$44000
25. Brazil,49,$15500
26. Austria (AT),44,$49200
27. Norway,44,$70600
28. Bulgaria (BG),43,$21600
29. Romania,42,$24000
30. Asia/Pacific Region,35,$false
31. Thailand,31,$17800
32. Belgium,28,$46300
33. Malaysia (MY),27,$28900
34. New Zealand,26,$38500
35. Hungary,24,$28900
36. South Africa,23,$13400
37. Israel,21,$36200
38. Denmark,20,$49600
39. Slovakia,18,$32900
40. Slovenia,17,$34100
41. Taiwan,17,$49800
42. Turkey (TR),17,$26500
43. Greece,16,$27800
44. Portugal,16,$30300
45. Argentina,16,$20700
46. Latvia,14,$27300
47. Europe,14,$false
48. India,11,$7200
49. Vietnam,10,$6900
50. Mexico,9,$19500