By Version

• R2: 117
• R2B: 0
• R3: 21,805
• R4: 159,865
• R4B: 43,782
• R5: 33,882
• R6: 2,460

By Authority

• none: 192,705
• hl7: 74,137
• ihe: 1,347
• national: 4,403
• who: 1,526

By Realm

• none: 186,402
• au: 746
• be: 692
• br: 400
• ca: 1,464
• ch: 1,935
• cl: 678
• cr: 121
• cz: 886
• de: 2,565
• dk: 1,547
• ee: 267
• eu: 888
• fi: 87
• fr: 3,265
• il: 328
• in: 163
• it: 102
• jp: 174
• kr: 30
• nl: 2,255
• no: 131
• nz: 134
• pl: 245
• se: 193
• stt: 116
• tw: 1,942
• uk: 6
• us: 22,256
• uv: 44,064
• other: 6