The shown data are by the page Tiobe one of the sites with but reputation to comparison of others.

Headed June: Is Swift going to replace to Objective-C?
This month Apple announced its new OS and programming language Swift for iOS X of development. Swift not yet comprises of ranking TIOBE, but it will be as of the next month. A preliminary view sample that his first qualification probably in top 20 by then. Swift is a step and so waited for of Apple. The introduction of successful iPhone and iPad brought about a great demand and development of movable applications, beginning around 2008/2009. Apple only offers its Objective-C language to create these applications then. Objective-C was one of the first languages OO, but never it received a change of image from its birth in 1983. So I felt a little old fashioned, when 25 years later, a great part of the community of development of software were forced to learn and to use Objective-C. It is why the launching of the new Swift language has been received very well. We are going to see what is going to happen in the next months.

Other programming languages

Position	Programming language	Valuations
21	Logo	0.767
22	OpenEdge ABL	0.737
23	R	0.673
24	PostScript	0.671
25	ML	0.635
26	PL/SQL	0.492
27	D	0.473
28	PL/I	0.446
29	cT	0.432
30	To go	0.425
31	COBOL	0.407
32	Ada	0.403
33	Fortran	0.371
34	ABAP	0.357
35	Lua	0.346
36	Haskell	0.346
37	RPG (OS/400)	0.325
38	Scratch	0.324
39	Tcl	0.315
40	SAS	0.308
41	Scala	0.308
42	Z shell	0.306
43	Scheme	0.279
44	Groovy	0.269
45	Korn	0.264
46	Prologue	0.263
47	Erlang	0.256
48	Motorcycle	0.239
49	I	0.234
50	Cg	0.234

 

Source: Tiobe.