Question: When did the base where The Naval Academy Preparatory School is located gain over five hundred billets?

Context articles: Naval Academy Preparatory School
Eastman's Royal Naval Academy
Schreiner University
Paxon School for Advanced Studies
United States Military Academy Preparatory School
Naval Station Newport
I believe that we will win!
Naval Academy Bridge
Armed Forces Academies Preparatory School
Trinity Grammar School Preparatory School

The Naval Academy Preparatory School or NAPS is the preparatory school for the United States Naval Academy.
 NAPS is located on Naval Station Newport, Rhode Island.
 The mission of the Naval Academy Preparatory School is "To enhance Midshipman Candidates' moral, mental, and physical foundations to prepare them for success at the United States Naval Academy".
Eastman's Royal Naval Academy, originally in Southsea and later at Winchester, both in England, was a preparatory school.
 Between 1855 and 1923 it was known primarily as a school that prepared boys for entry to the Royal Navy.
 Thereafter, it was renamed Eastman's Preparatory School and continued until the 1940s.
 According to Jonathan Betts, it was "considered one of the top schools for boys intended for the Navy".
Schreiner University is a private liberal arts institution located in Kerrville, Texas, and has a religious affiliation to the Presbyterian Church.
 The University enrolls an estimated 1,300 undergraduate and graduate students.
 It offers 27 four-year undergraduate programs, an MBA and a master of education.
 Established in 1923, it has been coeducational since 1932.
 As of the fall 2011, Schreiner had a student/faculty ratio of 13:1.
 The University is also home to Greystone Preparatory School, a college level Service Academy preparatory program for those who did not receive appointments or nominations straight out of high school.
Paxon School for Advanced Studies (PSAS) is one of three International Baccalaureate senior high schools (the others being Stanton College Preparatory School, and Jean Ribault High School) in Duval County, Florida.
 According to the College Board's Advanced Placement Report, Paxon has one of the strongest math and science Advanced Placement programs in the state of Florida, right behind their rival school Stanton College Preparatory School.
 Because of this accomplishment, Paxon is one of a select group of Florida schools invited to apply for the Siemens Advanced Placement High School Award.
 Only ten to fifteen schools per state are invited to apply.
 Some valedictorians have been accepted to the United States Naval Academy and different Ivy League schools.
The United States Military Academy Preparatory School (USMAPS), sometimes referred to as West Point Prep, is a preparatory school for the United States Military Academy (USMA).
 Located in West Point, New York, its official mission is "to provide academic, military and physical instruction in a moral-ethical military environment to prepare and motivate candidates for success at the United States Military Academy."
The Naval Station Newport (NAVSTA Newport) is a United States Navy base located in the city of Newport and the town of Middletown, Rhode Island.
 Naval Station Newport is home to the Naval War College and the Naval Justice School.
 It once was the homeport for Cruiser Destroyer Force Atlantic (COMCRUDESLANT), which relocated to Naval Station Norfolk in the early 1970s.
 Newport now maintains inactive ships at its pier facilities, along with the United States Coast Guard.
 In BRAC 2005 (Base Realignment and Closure), NAVSTA Newport gained over five hundred billets, in addition to receiving, again, the Officer Candidate School (OCS), the Naval Supply Corps School (in 2011), and several other activities, to include a few Army Reserve units.
"I believe that we will win!"
 is a chant commonly performed at sporting events.
 Originating in the Naval Academy Preparatory School, it became a tradition among fans and students of the United States Naval Academy.
 In 2014, the chant gained national recognition as a rallying call among United States men's national soccer team (USMNT) fans for the 2014 FIFA World Cup, becoming an unofficial motto of the team.
The U.S. Naval Academy Bridge is a bridge that crosses the Severn River in Annapolis, Maryland.
 It is located downriver from the Severn River Bridge and adjacent to the United States Naval Academy.
 Its predecessor, a bascule bridge, once served as the main point of entry into Annapolis from both Ritchie Highway and the ferry to the Eastern Shore prior to the construction of the John Hanson Highway and the current Severn River Bridge.
 In 1994, the deteriorating bascule bridge was replaced with the current crossing.
 The bridge's design was the winning entry of a bridge design competition, and was officially named the U.S. Naval Academy Bridge in honor of the Naval Academy's 150th anniversary.
 The Naval Academy Bridge is part of Maryland Route 450 and provides an alternative entrance to the Naval Academy, avoiding downtown Annapolis.
The Armed Forces Academies Preparatory School or AFAPS (Thai: โรงเรียนเตรียมทหาร abbreviated รร.ตท.)
 is a Thai military academy, providing an education equivalent to the last three years of senior high school (years 10-12).
 In Nakhon Nayok Province, it is a flagship institution of the Royal Thai Armed Forces Headquarters.
 The curriculum consists of rigorous academics, military training, and intensive physical activities.
 The AFAPS has a considerable drop-out rate.
 Cadets who manage to graduate automatically gain entrance to the Chulachomklao Royal Military Academy, the Royal Thai Naval Academy, the Royal Thai Air Force Academy, or the Royal Thai Police Academy.
Trinity Grammar School Preparatory School is a campus of Trinity Grammar School, which is used for the education of students from Pre-Kindergarten through to Year 6.
 While they serve to educate the same age group of boys, this is separate from Trinity Grammar School Junior School, which is found in Summer Hill, whereas the Preparatory School is based in Strathfield.
 The School is located on the corner of Llandilo Avenue and the Boulevard.
 The Preparatory School now houses over 600 students, which are kept together on the one campus, unlike the Junior School, which has its infants department in Lewisham and its primary facilities in Summer Hill.
 Unlike the other Trinity Grammar School campuses, boarders are not usually taught at the Preparatory School, as the Boarding House is located a short distance from the Junior School in Summer Hill.
 In the past, Lauriston was used as a separate boarding house for the Strathfield Campus.