In this task, you're given passages that contain mentions of a time duration related quesry and we are supposed to write answer to a question that involves event “frequency", which refers to how often an event is likely to be repeated. For example, "taking showers" typically occurs ~5 times a week, "going to saturday market" usually happens every few weeks/months, etc. 
 Note that a lot of the questions could have more than one correct answers. We only need a single most-likely answer. Please try to keep your "answer" as simple as possible. Concise and simple "answer" is preferred over those complex and verbose ones.  

Sentence: The Richmond Times-Dispatch, the local daily newspaper in Richmond with a Sunday circulation of 120,000, is owned by BH Media, a subsidiary of Warren Buffett's Berkshire Hathaway company. Style Weekly is a standard weekly publication covering popular culture, arts, and entertainment, owned by Landmark Communications. RVA Magazine is the city's only independent art music and culture publication, was once monthly, but is now issued quarterly. The Richmond Free Press and the Voice cover the news from an African-American perspective. 
Question: Before switching to its current publication schedule, how often was RVA Magazine published?
monthly