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:
| Code | District | Headquarters | Population (As of 2011) | Area (km²) | Density (/km²) |
| --- | --- | --- | --- | --- | --- |
| AL | Almora | Almora | 621,972 | 3,083 | 202 |
| BA | Bageshwar | Bageshwar | 259,840 | 2,302 | 113 |
| CL | Chamoli | Chamoli Gopeshwar | 391,114 | 7,613 | 51 |
| CP | Champawat | Champawat | 259,315 | 1,781 | 146 |
| DD | Dehradun | Dehradun | 1,695,860 | 3,088 | 550 |
| HA | Haridwar | Haridwar | 1,927,029 | 2,360 | 817 |
| NA | Nainital | Nainital | 955,128 | 3,860 | 247 |
| PG | Pauri Garhwal | Pauri | 686,572 | 5,399 | 127 |
| PI | Pithoragarh | Pithoragarh | 485,993 | 7,100 | 68 |
| RP | Rudra Prayag | Rudraprayag | 236,857 | 1,890 | 125 |
| TG | Tehri Garhwal | New Tehri | 616,409 | 4,080 | 151 |
| US | Udham Singh Nagar | Rudrapur | 1,648,367 | 2,908 | 567 |
| UT | Uttarkashi | Uttarkashi | 329,686 | 8,016 | 41 |
Question:
how many total districts are there in this area?
Answer:
13