By Version

• R2: 117
• R2B: 0
• R3: 21,811
• R4: 159,940
• R4B: 43,727
• R5: 33,532
• R6: 2,469

By Authority

• none: 192,421
• hl7: 74,127
• ihe: 1,335
• national: 4,393
• who: 1,527

By Realm

• none: 186,121
• au: 744
• be: 692
• br: 400
• ca: 1,463
• ch: 1,935
• cl: 677
• cr: 117
• cz: 893
• de: 2,455
• dk: 1,548
• ee: 256
• eu: 942
• fi: 87
• fr: 3,265
• il: 328
• in: 163
• it: 102
• jp: 174
• kr: 30
• nl: 2,253
• no: 131
• nz: 198
• pl: 245
• se: 158
• stt: 116
• tw: 1,932
• uk: 6
• us: 22,187
• uv: 44,149
• other: 6