If we look at the number of rails developers per capita we get the following distribution:
Update Aug 29 2007: Raul Murciano told me Spain was missing, so I added that.
- Denmark (100.0% : 64/5.4 mill)
- New Zealand (66.15% : 33/4.2 mill)
- Sweden (63.02% : 68/9.1 mill)
- Ireland (56.06% : 28/4.2 mill)
- Australia (52.52% : 130/20.9 mill)
- Netherlands (49.67% : 96/16.3 mill)
- Switzerland (48.72% : 43/7.4 mill)
- Canada (47.12% : 183/32.9 mill)
- United States (41.32% : 1474/302.5 mill)
- Finland (38.32% : 24/5.3 mill)
- United Kingdom (38.31% : 272/60.2 mill)
- Belgium (37.3% : 46/10.4 mill)
- Norway (33.77% : 19/4.7 mill)
- Israel (32.02% : 27/7.1 mill)
- Portugal (27.94% : 35/10.6 mill)
- Singapore (22.94% : 12/4.4 mill)
- Spain (22.44% : 120/45.1 mill)
- Austria (20.28% : 20/8.3 mill)
- Germany (18.93% : 184/82.4 mill)
- Czech Republic (17.31% : 21/10.2 mill)
- Poland (15.34% : 69/38.1 mill)
- France (14.55% : 110/64.1 mill)
- Hungary (12.68% : 15/10.0 mill)
- Argentina (10.29% : 48/39.5 mill)
- Ukraine (8.44% : 46/46.2 mill)
- Romania (7.91% : 20/21.4 mill)
- Brazil (7.85% : 173/186.8 mill)
- Italy (6.45% : 45/59.0 mill)
- Malaysia (4.37% : 14/27.1 mill)
- South Africa (3.49% : 20/48.5 mill)
- Venezuela (3.06% : 10/27.6 mill)
- Russia (3.03% : 51/142.4 mill)
- Philippines (2.39% : 25/88.7 mill)
- South Korea (2.11% : 12/48.2 mill)
- Japan (1.65% : 25/127.7 mill)
- Turkey (1.58% : 14/74.8 mill)
- Mexico (1.23% : 15/103.2 mill)
- India (1.08% : 150/1169.0 mill)
- Indonesia (0.43% : 12/231.6 mill)
- People's Republic of China (0.31% : 49/1319.0 mill)