By Version

• R2: 117
• R2B: 0
• R3: 21,574
• R4: 150,537
• R4B: 43,562
• R5: 32,483
• R6: 1,901

By Authority

• none: 181,912
• hl7: 73,988
• ihe: 1,309
• national: 3,699
• who: 1,473

By Realm

• none: 178,083
• au: 701
• be: 442
• br: 402
• ca: 1,362
• ch: 1,595
• cl: 519
• cr: 88
• cz: 869
• de: 2,094
• dk: 1,578
• ee: 177
• eu: 1,067
• fi: 87
• fr: 1,941
• il: 329
• in: 163
• it: 206
• jp: 174
• kr: 122
• nl: 2,187
• no: 116
• nz: 49
• pl: 245
• pt: 22
• se: 62
• stt: 116
• tw: 1,309
• uk: 6
• us: 21,578
• uv: 44,656
• other: 6