Number of Adoptions in 2006: 463
From US State Department
ELIGIBILITY REQUIREMENTS FOR ADOPTIVE PARENTS: Married and single people may adopt from Ukraine. Prospective adoptive parents have to be at least 18 years old, and the age difference between the adopting parent(s) and adopted child must be at least 15 years, although this can be waived if circumstances warrant. If the child is adopted by a relative, the age difference is not considered.
According to the new Family Code of Ukraine (Article 213), if multiple prospective adoptive parents wish to adopt the same child, preference will be given first to …read more

Number of Adoptions in 2006: 580
US Department of State 
ELIGIBILITY REQUIREMENTS FOR ADOPTIVE PARENTS:  Officially, Kazakhstan allows both single and married people to adopt, and there are no age requirements other than that an unmarried prospective adoptive parent must be at least 16 years older than the child s/he intends to adopt.  In practice, however, some unmarried prospective adoptive parents have found it difficult to adopt, as have prospective parents over age 60.
Prospective adoptive parents who have any type of arrest record, regardless of how minor or how long ago an offense occurred, should consult with an adoption professional before deciding …read more

Number of Adoptions in 2006: 1381
According to the US Embassy the following list items are not legal requirements but administrative guidelines but local agencies should follow them.

The more and more I read on the tabloids (thanks Brit) and on the Internet I feel that celebrities are playing the adoption card. Even Britney Spears, who was recently forced to share custody of her biological children with Kevin Federline is in the final stages of a China adoption. (ummm…not happening according to China time-lines and the Chinese adoption laws. Does anyone do their research?)
According to the agency The Great Wall of China the requirements to adopt from China are as follows: (I have highlighted circumstantial issues that pertain to Britney’s case.)