By Version

• R2: 117
• R2B: 0
• R3: 21,850
• R4: 161,876
• R4B: 44,156
• R5: 34,632
• R6: 2,496

By Authority

• none: 195,445
• hl7: 74,590
• ihe: 1,350
• national: 4,426
• who: 1,523

By Realm

• none: 188,668
• au: 742
• be: 586
• br: 400
• ca: 1,485
• ch: 1,951
• cl: 678
• cr: 55
• cz: 972
• de: 2,732
• dk: 1,546
• ee: 267
• eu: 1,013
• fi: 87
• fr: 3,278
• il: 347
• in: 163
• it: 102
• jp: 174
• kr: 30
• nl: 2,262
• no: 131
• nz: 49
• pl: 245
• se: 231
• stt: 116
• tw: 2,246
• us: 22,583
• uv: 44,159
• other: 6