By Version

• R2: 117
• R2B: 0
• R3: 21,849
• R4: 161,428
• R4B: 43,782
• R5: 34,461
• R6: 2,481

By Authority

• none: 194,407
• hl7: 74,551
• ihe: 1,350
• national: 4,494
• who: 1,523

By Realm

• none: 187,870
• au: 742
• be: 692
• br: 400
• ca: 1,477
• ch: 1,935
• cl: 678
• cr: 55
• cz: 970
• de: 2,732
• dk: 1,547
• ee: 267
• eu: 910
• fi: 87
• fr: 3,274
• il: 347
• in: 163
• it: 102
• jp: 174
• kr: 30
• nl: 2,268
• no: 131
• nz: 134
• pl: 245
• se: 192
• stt: 116
• tw: 1,974
• us: 22,573
• uv: 44,204
• other: 6