San Diego State University (SDSU, San Diego State) is a public research university in San Diego, California, and is the largest and oldest higher education institution in San Diego County.
 Founded in 1897 as San Diego Normal School, it is the third-oldest university in the 23-member California State University (CSU).
 SDSU has a Fall 2016 student body of 34,688 and an alumni base of more than 280,000.
The San Diego Mountain Rescue Team (SDMRT) is an all-volunteer organization located in San Diego County, California operating under the jurisdiction of the San Diego County Sheriff's Department.
 With approximately seventy active members, SDMRT responds to calls at any time to search for and rescue missing, injured or stranded persons in San Diego County and, through mutual-aid requests, in other counties within the state of California.
 SDMRT is a fully accredited member of the international Mountain Rescue Association as well as an accredited Type I Mountain Search and Rescue Team.
 SDMRT routinely works with the San Diego Sheriff's Office Search and Rescue Bureau and San Diego's Aerial Support to Regional Enforcement Agencies (ASTREA) on operations within the county.
 On operations outside of San Diego County, SDMRT works under the particular agency having jurisdiction for the region in question.
Higher education in Portugal is divided into two main subsystems: university and polytechnic education.
 It is provided in autonomous public universities, private universities, public or private university institutes, polytechnic institutions and higher education institutions of other types.
 Higher education in state-run educational establishments is provided on a competitive basis, a system of "numerus clausus" is enforced through a national database on student admissions.
 In addition, every higher education institution offers also a number of additional vacant places through other extraordinary admission processes for sportsmen, mature applicants (over 23 years old), international students, foreign students from the Lusosphere, degree owners from other institutions, students from other institutions (academic transfer), former students (readmission), and course change, which are subject to specific standards and regulations set by each institution or course department.
 Portuguese universities have existed since 1290.
 The oldest such institution, the University of Coimbra, was first established in Lisbon before moving to Coimbra.
 Historically, within the scope of the now defunct Portuguese Empire, the Portuguese founded in 1792 the oldest engineering school of Latin America (the Real Academia de Artilharia, Fortificação e Desenho), as well as the oldest medical college of Asia (the Escola Médico-Cirúrgica de Goa) in 1842.
The UC San Diego Tritons are the athletic sports teams for the University of California San Diego.
 UC San Diego has 23 varsity sports teams and offers student participation in a wide range of sports including swimming, water polo, soccer, volleyball, crew, track and field, fencing, basketball, golf, cross country, softball, baseball, and tennis.
 UC San Diego participates at the NCAA's Division II (DII) level in the California Collegiate Athletic Association (CCAA), although water polo, fencing, and men's volleyball compete at the Division I level.
 Since their move to Division II starting in the 2000–01 season, UCSD has placed in the top 5 in the Division II NACDA Directors' Cup standings five times, including two 2nd-place finishes.
 NCSA Athletic Recruiting has ranked the Tritons as the nation's top Division II program for eight consecutive years.
 In May 2016, UCSD students voted to transition all sports teams to the NCAA Division I level.
San Diego County Credit Union (SDCCU) is San Diego's largest locally owned financial institution.
 This credit union is based in San Diego, California.
 SDCCU was founded in 1938 as San Diego County Employees Credit Union and was formed to provide for the financial needs of local county government employees.
 During the 1970s, San Diego County Employees Credit Union changed its name to San Diego County Credit Union and expanded its membership to include all San Diegans.
 Today, SDCCU is open to everyone living or working in San Diego, Riverside and Orange counties.
San Diego Continuing Education (SDCE) is a public, non-credit educational institution in San Diego, California.
 It is part of the San Diego Community College District along with three two-year community colleges: San Diego City, San Diego Mesa and San Diego Miramar colleges.
 It is administered by the San Diego Community College District.
 With full accreditation by the Western Association of Schools and Colleges, SDCE is the nation’s largest separately-accredited non-credit continuing education institution.
The San Diego State Aztecs are the athletic teams that represent San Diego State University (SDSU).
 The Aztecs currently sponsor six men's and thirteen women's sports at the varsity level.
The San Diego Community College District (SDCCD) is a public community college district in the city of San Diego, California.
 The district is one of the five community college districts in San Diego County; part of the greater California Community College system.
 Under the California Master Plan for Higher Education, the California Community College system is a part of the state's three-tier public higher education system, which also includes the University of California system and California State University system.
The Office of the Independent Adjudicator for Higher Education (OIA) is a company that handles students' complaints against universities within England and Wales.
 The OIA does not investigate the merits of the original complaint, which must be done by a court.
 It, however, reviews if the higher education institution followed their own procedures.
 Its remit is limited to those complaints that have first been taken through the procedures of a higher education institution's own internal system without reaching a satisfactory conclusion in the view of the complainant.
 Previously, all complaints to the OIA had to be made within three months of the conclusion of the internal investigation by the higher education institution (which should usually have resulted in issue of a 'Completion of Procedures' letter).
 However, the following now applies: the complaint must be completed within one year of your 'Completion of Procedures' letter, except if your 'Completion of Procedures' Letter is dated on or before 8 July 2015 in which case The OIA must receive the Complaint Form within three months of the Letter's date.
San Diego County, California has been called "the Craft Beer Capital of America."
 As of 2016 the county was home to 125 licensed craft breweries - the most of any region in the United States.
 Based on 2016 sales volume, three San Diego County breweries - Stone, Green Flash, and Karl Strauss - rank among the 50 largest craft brewers in the United States.
 San Diego County brewers pioneered the specialty beer style known as Double India Pale Ale (Double IPA), sometimes called San Diego Pale Ale.
 Its beer culture is a draw for tourism, particularly during major festivals such as San Diego Beer Week and the San Diego International Beer Competition.
 San Diego County breweries like Stone Brewing Co., AleSmith Brewing Company and Ballast Point Brewing Company are consistently rated among the top breweries in the world.

Question: How many women's sports teams does the oldest higher education institution on San Diego County support at the varsity level?
Answer: thirteen women's sports