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:
| Position | Swara | Short name | Notation | Mnemonic |
| --- | --- | --- | --- | --- |
| 1 | Shadja | Sa | S | sa |
| 2 | Shuddha Rishabha | Ri | R1 | ra |
| 3 | Chatushruti Rishabha | Ri | R2 | ri |
| 3 | Shuddha Gandhara | Ga | G1 | ga |
| 4 | Shatshruti Rishabha | Ri | R3 | ru |
| 4 | Sadharana Gandhara | Ga | G2 | gi |
| 5 | Antara Gandhara | Ga | G3 | gu |
| 6 | Shuddha Madhyama | Ma | M1 | ma |
| 7 | Prati Madhyama | Ma | M2 | mi |
| 8 | Panchama | Pa | P | pa |
| 9 | Shuddha Dhaivata | Dha | D1 | dha |
| 10 | Chatushruti Dhaivata | Dha | D2 | dhi |
| 10 | Shuddha Nishada | Ni | N1 | na |
| 11 | Shatshruti Dhaivata | Dha | D3 | dhu |
| 11 | Kaisiki Nishada | Ni | N2 | ni |
| 12 | Kakali Nishada | Ni | N3 | nu |
Question:
on average how many of the swara have a short name that begin with d or g?
Answer:
6