Data about the H-2A and H-2B temporary work visa programs

The Global Worker Alliance has on its webite some important facts about these programs. H-2A is for agricultural workers.H-2B is for forestry, landscaping and construction.
These are not to be confused with the H-1A program which brings over engineers and computer sciences, from which Intel and Microsoft and their like benefit. I have posted on all of these program before.
Go here for the Global Worker Alliance posting which includes source of data citations.
What the Global Worker Alliance reports:
The United States admits temporary (less than one year) foreign guestworkers through its H-2 program. H-2 visas workers are considered non-professional workers. H-2A visas are issued for seasonal agricultural workers. H-2B visas are issued for temporary non-agricultural workers. Industries that often use H-2B workers are forestry, construction, and landscaping.
H-2R visas are issued to persons who had been issued an H-2B visa within any of the previous three fiscal years. The H-2B and H-2R issuance totals for each nationality when added together produce the totals of H-2B temporary worker visas issued.
Top Ten Countries of Origin for H-2A workers – 2006
Total H-2A Visas Issued 37,149
1. Mexico 34,195 [92% of total]
2. South Africa 1,054
3. Peru 841
4. Nicaragua 146
5. Guatemala 110
6. Australia 87
7. Romania 87
8. New Zealand 84
9. Haiti 78
10. Chile 64
Top Ten Countries of Origin for H-2B workers – 2006
Total H-2B Visas Issued 71,687
1. Mexico 43,269 [60% of total]
2. Jamaica 4,727
3. Romania 2,752
4. Guatemala 2,605
5. South Africa 1,855
6. Philippines 1,590
7. Great Britain 1,504
8. Brazil 1,474
9. Bulgaria 1,108
10. Dominican Republic 853
Top Ten Countries of Origin for H-2R workers – 2006
Total H-2R Visas Issued 50,854
1. Mexico 36,723 [[72% of total]
2. Jamaica 8,402
3. Guatemala 2,356
4. Dominican Republic 490
5. Costa Rica 409
6. Romania 329
7. Honduras 328
8. New Zealand 305
9. Bulgaria 237
10. Australia 231