diff --git a/wizard-work/ledger/GDP-per-capita-usd-provenance.md b/wizard-work/ledger/GDP-per-capita-usd-provenance.md
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+# GDP per capita (nominal, USD) — extraction provenance
+
+- **Source**: Wikipedia, "List of countries by GDP (nominal) per capita"
+  - URL: https://en.wikipedia.org/wiki/List_of_countries_by_GDP_(nominal)_per_capita
+- **Extraction date**: 2026-10-21
+- **Table**: the single `wikitable` on the page; rows 6..227 = data (222 rows); row 228 = the Notes row.
+- **Columns**: country, imf (2026), world_bank (2025), un (2023-24)
+- **Cleaning**: stripped HTML tags, footnote references, the `.mw-parser-output .sr-only` CSS leak, trailing year in parentheses, commas and spaces; a leading "—" is rendered as "N/A" (unavailable).
+- **Notes**: "—" in the IMF column = not available (e.g. Monaco, Bermuda). Values are nominal US$ per capita, latest available year per source (column headers carry the year). The source table is sorted by IMF value descending.
+
+Tables produced: `gdp_per_capita_usd.csv`.
diff --git a/wizard-work/ledger/gdp_per_capita_usd.csv b/wizard-work/ledger/gdp_per_capita_usd.csv
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+country,imf_gdp_per_capita_usd,world_bank_gdp_per_capita_usd,un_gdp_per_capita_usd
+Monaco,N/a,288002,288002
+Liechtenstein,230417,220167,216392
+Luxembourg,155733,147252,138596
+Bermuda,N/a,142250,136766
+Ireland,127837,131593,109874
+Switzerland,124478,114769,104973
+Norway,115188,94594,86717
+Singapore,109117,98814,93853
+Iceland,107464,98324,84450
+CaymanIslands,N/a,104293,102833
+UnitedStates,95212,90027,84817
+IsleofMan,N/a,90015,N/a
+Denmark,82713,76970,71021
+Netherlands,78535,73684,66649
+Macau,77049,75902,68680
+Australia,75172,65130,68528
+ChannelIslands,N/a,74586,N/a
+FaroeIslands,N/a,74175,N/a
+Israel,72441,60337,57770
+SanMarino,70662,59871,58917
+Sweden,69244,63133,57028
+Austria,67020,62930,58634
+Germany,65699,60496,55113
+Belgium,64773,60750,56613
+Qatar,63634,72525,71894
+Greenland,N/a,58499,62078
+UnitedKingdom,61108,57602,53313
+HongKong,60322,56983,54871
+Finland,60156,56149,53174
+Canada,60105,55698,57120
+UnitedArabEmirates,57109,50274,50088
+Andorra,53988,54292,49304
+Malta,52149,47907,46386
+France,51448,48986,45950
+NewZealand,51043,49591,49889
+Italy,45886,43309,40112
+"""]}'>Cyprus",44477,41783,40476
+U.S.VirginIslands,N/a,44321,N/a
+"""]}'>Taiwan",43951,N/a,N/a
+Bahamas,43858,39455,39455
+SouthKorea,43512,36227,36262
+SintMaarten(Dutchpart),N/a,42978,38515
+Aruba,42934,38591,38791
+PuertoRico,41851,40620,38814
+Guam,N/a,41833,N/a
+Spain,41756,38627,35958
+Slovenia,41631,37376,34212
+Brunei,40613,32235,33418
+CzechRepublic,39614,35917,32139
+BritishVirginIslands,N/a,N/a,38627
+Guyana,38572,32414,29670
+TurksandCaicosIslands,N/a,37507,37760
+Estonia,37310,34418,31434
+SaudiArabia,36577,34537,36927
+Lithuania,36135,32959,29684
+Japan,35399,35951,32534
+Portugal,34815,32082,30049
+Anguilla,N/a,N/a,31269
+Poland,31186,28420,23734
+Slovakia,30884,28544,25746
+CookIslands,N/a,N/a,30161
+Croatia,29860,27104,23911
+Greece,29413,26948,25592
+NewCaledonia,N/a,29213,34981
+Kuwait,28928,32312,32471
+Latvia,28630,26312,23337
+Barbados,28245,28365,26897
+Bahrain,28147,30597,29314
+Hungary,27884,25908,23037
+Uruguay,27339,25216,23907
+Romania,24742,22538,20130
+NorthernMarianaIslands,N/a,23786,N/a
+Cuba,N/a,9605,22957
+Curaçao,N/a,22833,19200
+AntiguaandBarbuda,22504,24819,23060
+FrenchPolynesia,N/a,22440,22438
+Oman,22425,19947,20825
+Bulgaria,22300,20328,16773
+SaintKittsandNevis,22237,22771,23916
+SaintMartin(Frenchpart),N/a,21668,N/a
+Palau,21308,19532,17513
+CostaRica,21282,19970,18587
+Turkey,21079,18599,15127
+Panama,20877,19790,19103
+Chile,19962,17995,16710
+Russia,19953,17547,15007
+Maldives,19507,14615,13379
+Kazakhstan,19311,14692,14155
+Seychelles,19157,19449,16576
+TrinidadandTobago,18603,18967,17001
+Montserrat,N/a,N/a,18451
+AmericanSamoa,N/a,18018,N/a
+Serbia,17126,15262,13223
+Montenegro,16211,14817,12959
+Mexico,16191,13889,14158
+Nauru,16076,14640,15645
+Argentina,16021,14898,13970
+Malaysia,15981,13125,11867
+"""]}'>China",15371,13862,13206
+SaintLucia,15091,14746,14323
+World,14217,14406,13097
+Albania,13968,12998,9685
+Mauritius,13671,12991,11763
+Grenada,13298,12107,11705
+DominicanRepublic,13245,11059,10876
+Brazil,12397,10713,10311
+Turkmenistan,12291,6540,9161
+Belarus,11962,10279,8387
+NorthMacedonia,11762,10490,9299
+Peru,11498,9684,8456
+SaintVincentandtheGrenadines,11405,12562,11294
+"""]}'>Georgia",11234,9692,8980
+Gabon,11034,8263,8219
+BosniaandHerzegovina,10845,10382,9632
+Colombia,10726,8562,7914
+Armenia,10663,9474,8728
+Dominica,10428,10989,10405
+Paraguay,9907,7027,6457
+"""]}'>Moldova",9497,8622,5997
+MarshallIslands,9085,8489,7491
+Suriname,8965,7070,6990
+Kosovo,8902,7899,6621
+Jamaica,8674,8003,7754
+Mongolia,8570,7108,6786
+Botswana,8563,7778,7695
+Azerbaijan,8497,7411,7190
+EquatorialGuinea,8484,6615,6493
+Thailand,8372,8057,7347
+Tuvalu,8367,6345,5851
+Belize,8078,7866,7681
+SouthAfrica,7659,6598,6267
+Ecuador,7575,7125,6875
+Libya,7557,6449,6569
+Tonga,7343,6547,6218
+"""]}'>Ukraine",7075,5866,5038
+Fiji,7034,6642,6426
+FederatedStatesofMicronesia,7010,4414,5058
+Guatemala,6980,6598,6150
+Algeria,6910,6051,5703
+CapeVerde,6556,5797,5273
+Lebanon,6443,4473,6543
+Samoa,6303,5873,5749
+ElSalvador,6124,5767,5580
+Namibia,5742,4876,4413
+Jordan,5598,5348,4618
+Vietnam,5260,5066,4717
+Iraq,5258,5410,6074
+Indonesia,5153,5060,4925
+Morocco,5141,4673,4217
+SriLanka,5062,5002,4273
+Tunisia,5053,4657,4357
+Bhutan,4933,4493,4228
+Eswatini,4775,4108,3981
+SãoToméandPríncipe,4582,4084,3517
+Uzbekistan,4575,3968,3162
+Djibouti,4556,3906,3553
+Philippines,4360,4171,3985
+Venezuela,4355,3495,5298
+Vanuatu,4052,4039,3332
+Bolivia,4051,5148,3756
+Egypt,4024,3086,2634
+Angola,3876,3130,3092
+Nicaragua,3732,3173,2848
+Zimbabwe,3718,3021,2748
+Honduras,3663,3598,3426
+Kyrgyzstan,3620,3081,2432
+Ghana,3604,3257,2409
+Iran,3548,3924,4894
+PapuaNewGuinea,3419,3020,2986
+IvoryCoast,3264,3050,2690
+"""]}'>Palestine",2853,3171,3640
+Haiti,3095,2694,1705
+Kiribati,3058,2559,2178
+Mauritania,3015,2198,2121
+Cambodia,3001,2872,2603
+Bangladesh,2887,2597,2464
+Congo,2867,2515,2291
+Guinea,2785,1877,1597
+Kenya,2785,2363,1952
+India,2749,2703,2724
+Laos,2331,2325,1958
+SolomonIslands,2295,2086,2042
+Cameroon,2115,1972,1737
+Senegal,2054,1955,1682
+Tajikistan,2005,1637,1161
+Zambia,1882,1318,1331
+Comoros,1859,2056,1703
+Pakistan,1836,1596,1212
+Benin,1800,1658,1394
+Nigeria,1594,1224,1646
+Nepal,1540,1536,1363
+Timor-Leste,1520,1341,1503
+Myanmar,1507,1489,1147
+Togo,1480,1384,997
+Uganda,1453,1206,1049
+Guinea-Bissau,1429,1124,855
+Zanzibar,N/a,N/a,1374
+Mali,1343,1193,833
+"""]}'>Tanzania",1325,1319,1209
+BurkinaFaso,1316,1148,883
+Lesotho,1298,1089,916
+Chad,1295,1022,913
+Rwanda,1291,1124,1010
+Syria,N/a,1057,1230
+Ethiopia,1111,933,1241
+DRCongo,1111,807,655
+Gambia,1030,919,890
+Liberia,976,915,917
+SierraLeone,947,846,758
+CentralAfricanRepublic,891,556,496
+Somalia,850,661,597
+Niger,740,775,643
+Malawi,740,672,509
+Mozambique,673,627,623
+Eritrea,N/a,688,656
+Madagascar,649,599,598
+SouthSudan,642,1080,403
+NorthKorea,N/a,N/a,640
+Sudan,597,1165,680
+Yemen,567,634,222
+Burundi,510,234,289
+Afghanistan,448,417,396