Gross Domestic Product: Other Transportation and Support Activities (NAICS 487-488, 492) in Maryland was 3201.20000 Mil. of $ in January of 2022, according to the United States Federal Reserve. Historically, Gross Domestic Product: Other Transportation and Support Activities (NAICS 487-488, 492) in Maryland reached a record high of 3201.20000 in January of 2022 and a record low of 940.00000 in January of 1997. Trading Economics provides the current actual value, an historical data chart and related indicators for Gross Domestic Product: Other Transportation and Support Activities (NAICS 487-488, 492) in Maryland - last updated from the United States Federal Reserve on March of 2024.