By Version

• R2: 117
• R2B: 0
• R3: 21,800
• R4: 160,054
• R4B: 43,721
• R5: 32,950
• R6: 2,469

By Authority

• none: 192,090
• hl7: 74,273
• ihe: 1,327
• national: 4,283
• who: 1,345

By Realm

• none: 185,714
• au: 757
• be: 620
• br: 400
• ca: 1,468
• ch: 1,905
• cl: 551
• cr: 117
• cz: 975
• de: 2,343
• dk: 1,548
• ee: 255
• eu: 977
• fi: 87
• fr: 3,309
• il: 328
• in: 163
• it: 102
• jp: 174
• kr: 30
• nl: 2,249
• no: 129
• nz: 198
• pl: 258
• pt: 50
• se: 161
• stt: 116
• tw: 1,818
• uk: 6
• us: 22,372
• uv: 44,102
• other: 6