| PBG028001 | Total | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028002 | Total!!Gulf War (9/2001 or later), no Gulf War (8/1990 to 8/2001), no Vietnam Era | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028003 | Total!!Gulf War (9/2001 or later) and Gulf War (8/1990 to 8/2001), no Vietnam Era | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028004 | Total!!Gulf War (9/2001 or later), and Gulf War (8/1990 to 8/2001), and Vietnam Era | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028005 | Total!!Gulf War (8/1990 to 8/2001), no Vietnam Era | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028006 | Total!!Gulf War (8/1990 to 8/2001) and Vietnam Era | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028007 | Total!!Vietnam Era, no Korean War, no World War II | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028008 | Total!!Vietnam Era and Korean War, no World War II | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028009 | Total!!Vietnam Era and Korean War and World War II | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028010 | Total!!Korean War, no Vietnam Era, no World War II | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028011 | Total!!Korean War and World War II, no Vietnam Era | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028012 | Total!!World War II, no Korean War, no Vietnam Era | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028013 | Total!!Between Gulf War and Vietnam Era only | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028014 | Total!!Between Vietnam Era and Korean War only | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028015 | Total!!Between Korean War and World War II only | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |
| PBG028016 | Total!!Pre-World War II only | PERIOD OF MILITARY SERVICE FOR CIVILIAN VETERANS 18 YEARS AND OVER | predicate-only | | 0 | int | PBG28 |