Interesting figures from Delphi-PRAXIS (Biggest German Delphi Newsgroup)
http://www.delphipraxis.net/statistics.php
Most used Delphi versions
Rank Delphi-Version Count
1 Delphi 7 Enterprise 866
2 Delphi 7 Professional 631
3 Delphi 7 Personal 365
4 Delphi 6 Enterprise 351
5 Delphi 6 Professional 333
6 Delphi 6 Personal 326
7 Delphi 2005 Personal 314
8 Delphi 5 Professional 277
9 Delphi 5 Enterprise 249
10 Delphi 2005 Professional 192
11 Delphi 2006 Professional 173
12 Delphi 5 Standard 163
13 Turbo Delphi für Win32 109
14 Delphi 3 Professional 107
15 Delphi 7 Architect 100
16 Delphi 2005 Architect 97
17 Delphi 2006 Architect 68
18 Delphi 4 Standard 61
19 Delphi 2006 Enterprise 53
20 Delphi 2005 Enterprise 42
21 Delphi 8 Professional 36
22 Delphi 4 Professional 28
23 Delphi 8 Architect 25
24 Delphi 3 Standard 25
25 Delphi 2 Desktop 16
さようならDelphi