Shortage of Female Public School Administrators?

Mark your calendars! August 31st is the deadline for applications for the first time ever, Women in School Leadership Award, sponsored by the The American Association of School Administrators (AASA). From the AASA website:

Recognize an exceptional female administrator in your school system! This first-time offered AASA Women in School Leadership Award, sponsored by Farmers Insurance and AASA, pays tribute to the talent, creativity, and vision of outstanding women educational administrators in the nation’s public schools. http://www.aasa.org/WomensLeadership.aspx

In my own career, I've taught under eight principals, five women and three men. The women only AASA award is discriminatory, divisive, and unnecessary in an age when females make up a good percentage of public school administrators. Summarizing the results of the 1999-2000 Schools and Staff Survey conducted by National Center for Educational Statistics, Susan M. Gates, et al. of the Rand Corporation noted that the overral number of female public school principals had trended upward since the eighties. While the percentage of female principals in public high schools was still low, and while the percentage of principals was less than the rcentage of women in teaching, nevertheless 43.7% of all public school principals were women. According to Gates:

After years of concern about the representation of women in the principalship,the 1990s saw dramatic progress. By 1999–2000 . . . nearly half of all public school principals were women, as were over half of all new public school principals and all private school principals. "Who is Leading Our Schools? An Overview of School Administrators and their Careers," by Susan M. Gates, et al. (2003)
http://www.rand.org/pubs/monograph_reports/MR1679/MR1679.ch3.pdf

I was unable to find references to any Schools and Staffing Survey more recent than the 1999-2000 survey. If anyone can point me to more recent data concerning the gender composition of public school principals and/or administrators, I'd be much obliged. Until then, my take on the AASA's Women in School Leadership Award is that it's a bit late to the party.