The Arlington National Cemetary has their own website. I have attached their link below.
The officials at the Arlington Nation Cemetery can give you an exact figure. Considering about 6400 are buried there in a year it would be a lot. I put the link down below for you to contact Arlinton National Cemetery historians.
Arlington National Cemetery
The national cemetery is in Arlington, Virginia.
Arlington National Cemetery is the final resting place for numerous notable individuals, including President John F. Kennedy, Civil War General William Tecumseh Sherman, and astronaut John Glenn. Other prominent figures interred there include Supreme Court Justice Thurgood Marshall and civil rights leader Medgar Evers. The cemetery honors military personnel, public officials, and notable citizens who have made significant contributions to the nation.
Culpeper National Cemetery was created in 1866.
Riverside National Cemetery was created in 1976.
Calverton National Cemetery was created in 1978.
Willamette National Cemetery was created in 1949.
National Cemetery in Martin was created in 1780.
Marion National Cemetery was created in 1890.
Glendale National Cemetery was created in 1866.
Alabama National Cemetery was created in 2009.