A 1997 study, entitled “Strengths of Their Own: Home Schoolers Across America” homeschoolers, on the average were found to out-perform public school students by 30 to 37 percentile points in all subjects.
In grades K-12, both white and minority students scored, on the average, in the 87th percentile. In math, whites scored in the 82nd percentile [...]

About 1.1 million students (1,096,000) were being homeschooled in the United States in the spring of 2003 according to an NHES study (National Household Education Surveys Program).
This represents an increase from the estimated 850,000 students who were being homeschooled in the spring of 1999.
In addition, the estimated homeschooling rate, the percentage of the school-age population [...]