By Version

• R2: 117
• R2B: 0
• R3: 9,518
• R4: 145,738
• R4B: 42,813
• R5: 30,502
• R6: 1,594

By Authority

• none: 176,497
• hl7: 59,524
• ihe: 1,255
• national: 3,835
• who: 1,378

By Realm

• none: 172,919
• au: 698
• be: 441
• br: 278
• ca: 882
• ch: 1,526
• cl: 715
• cr: 78
• cz: 1,067
• de: 2,574
• dk: 1,628
• ee: 180
• eu: 1,187
• fi: 87
• fr: 1,780
• il: 319
• in: 163
• it: 206
• jp: 174
• kr: 122
• nl: 2,084
• no: 26
• nz: 49
• pl: 260
• pt: 24
• se: 29
• stt: 116
• tw: 1,131
• uk: 6
• us: 21,248
• uv: 30,456
• other: 6