Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Area served | City of license | VC | RF | Callsign | Network | Notes |
| --- | --- | --- | --- | --- | --- | --- |
| Cape Girardeau | ~Harrisburg IL | 3 | 34 | WSIL-TV | ABC |  |
| Cape Girardeau | ~Paducah KY | 6 | 32 | WPSD-TV | NBC |  |
| Cape Girardeau | ~Carbondale IL | 8 | 8 | WSIU-TV | PBS |  |
| Cape Girardeau | Cape Girardeau | 12 | 12 | KFVS-TV | CBS |  |
| Cape Girardeau | Cape Girardeau | 23 | 22 | KBSI | Fox |  |
| Cape Girardeau | ~Marion IL | 27 | 17 | WTCT | Ind. |  |
| Cape Girardeau | ~Paducah KY | 49 | 49 | WDKA | MNT |  |
| Columbia/Jefferson City | Sedalia | 6 | 15 | KMOS-TV | PBS |  |
| Columbia/Jefferson City | Columbia | 8 | 8 | KOMU-TV | NBC |  |
| Columbia/Jefferson City | Jefferson City | 13 | 12 | KRCG | CBS |  |
| Columbia/Jefferson City | Columbia | 17 | 17 | KMIZ | ABC |  |
| Columbia/Jefferson City | Jefferson City | 25 | 20 | KNLJ | Ind. |  |
| Hannibal | Hannibal | 7 | 7 | KHQA-TV | CBS | ABC on 7.2 |
| Hannibal | ~Quincy IL | 10 | 10 | WGEM-TV | NBC |  |
| Hannibal | ~Quincy IL | 16 | 32 | WTJR | Ind. |  |
| Hannibal | ~Quincy IL | 27 | 34 | WQEC | PBS | satellite of WSEC ch. 14 Springfield IL |
| Joplin | ~Pittsburg KS | 7 | 7 | KOAM-TV | CBS |  |
| Joplin | Joplin | 12 | 43 | KODE-TV | ABC |  |
| Joplin | ~Pittsburg KS | 14 | 13 | KFJX | Fox |  |
| Joplin | Joplin | 16 | 46 | KSNF | NBC |  |
| Joplin | Joplin | 26 | 25 | KOZJ | PBS | satellite of KOZK ch. 21 Springfield |
| Kansas City | Kansas City | 4 | 34 | WDAF-TV | Fox |  |
| Kansas City | Kansas City | 5 | 24 | KCTV | CBS |  |
| Kansas City | Kansas City | 9 | 29 | KMBC-TV | ABC |  |
| Kansas City | St. Joseph | 16 | 21 | KTAJ-TV | TBN |  |
| Kansas City | Kansas City | 19 | 18 | KCPT | PBS |  |
| Kansas City | Kansas City | 29 | 31 | KCWE | CW |  |
| Kansas City | ~Lawrence KS | 38 | 41 | KMCI | Ind. |  |
| Kansas City | Kansas City | 41 | 42 | KSHB-TV | NBC |  |
| Kansas City | Kansas City | 50 | 51 | KPXE-TV | ION |  |
| Kansas City | Kansas City | 62 | 47 | KSMO-TV | MNT |  |
| Kirksville | Kirksville | 3 | 33 | KTVO | ABC |  |
| Kirksville | ~Ottumwa IA | 15 | 15 | KYOU-TV | Fox |  |
| Poplar Bluff | Poplar Bluff | 15 | 15 | KPOB-TV | ABC | satellite of WSIL-TV ch. 3 Harrisburg IL |
| St. Joseph | St. Joseph | 2 | 7 | KQTV | ABC |  |
| St. Louis | St. Louis | 2 | 43 | KTVI | Fox | ABC (1955-1995), Fox O&O (c.1995-2008) |
| St. Louis | St. Louis | 4 | 24 | KMOV | CBS | CBS O&O (1958-1986 as KMOX-TV) |
| St. Louis | St. Louis | 5 | 35 | KSDK | NBC |  |
| St. Louis | St. Louis | 9 | 39 | KETC | PBS |  |
| St. Louis | St. Louis | 11 | 26 | KPLR-TV | CW |  |
| St. Louis | St. Louis | 24 | 14 | KNLC | Ind. |  |
| St. Louis | St. Louis | 30 | 31 | KDNL-TV | ABC | Independent (1969-1986); Fox (1986-1995) |
| St. Louis | ~East St. Louis IL | 46 | 47 | WRBU | MNT |  |
| Springfield | Springfield | 3 | 44 | KYTV | NBC |  |
| Springfield | Springfield | 10 | 10 | KOLR | CBS |  |
| Springfield | Springfield | 21 | 23 | KOZK | PBS |  |
| Springfield | Springfield | 27 | 28 | KOZL-TV | Ind. |  |
| Springfield | ~Harrison AR | 31 | 31 | KWBM | Ind. |  |
| Springfield | Springfield | 33 | 19 | KSPR | ABC | K15CZ (CW) on 33.2 |
| Springfield | Osage Beach | 49 | 49 | KRBK | Fox |  |
| Springfield | Springfield | 8 | 8 | KRFT-LD | MundoFox | TNN on 8.2, My Family TV on 8.3 |
Question:
what is the total number of cbs stations?
Answer:
7