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:
| Name | Years | Area | Authority | Decile | Roll |
| --- | --- | --- | --- | --- | --- |
| Blomfield Special School and Resource Centre | – | Whangarei | State | 4 | 72 |
| Bream Bay College | 7–15 | Ruakaka | State | 4 | 446 |
| Christian Renewal School | 1–15 | Whangarei | State integrated | 5 | 170 |
| Excellere College | 1–15 | Kamo | State integrated | 5 | 174 |
| Glenbervie School | 1–6 | Glenbervie | State | 7 | 284 |
| He Mataariki School for Teen Parents | – | Raumanga | State | 1 | n/a |
| Hikurangi School | 1–8 | Hikurangi | State | 1 | 180 |
| Hora Hora School | 1–6 | Horahora | State | 2 | 313 |
| Huanui College | 7–15 | Glenbervie | Private | n/a | 181 |
| Hukerenui School Years 1-8 | 1–8 | Hukerenui | State | 5 | 99 |
| Hurupaki School | 1–6 | Kamo | State | 8 | 367 |
| Kamo High School | 9–15 | Kamo | State | 5 | 1020 |
| Kamo Intermediate | 7–8 | Kamo | State | 5 | 531 |
| Kamo Primary School | 1–6 | Kamo | State | 5 | 396 |
| Kaurihohore School | 1–6 | Kauri | State | 6 | 191 |
| Kokopu School | 1–8 | Kokopu | State | 9 | 44 |
| Manaia View School | 1–8 | Raumanga | State | 1 | 222 |
| Mangakahia Area School | 1–15 | Titoki | State | 3 | 155 |
| Matarau School | 1–8 | Matarau | State | 9 | 248 |
| Maungakaramea School | 1–8 | Maungakaramea | State | 9 | 64 |
| Maungatapere School | 1–8 | Maungatapere | State | 9 | 283 |
| Maunu School | 1–6 | Maunu | State | 9 | 341 |
| Morningside School | 1–6 | Morningside | State | 3 | 212 |
| Ngunguru School | 1–8 | Ngunguru | State | 7 | 218 |
| One Tree Point School | 1–6 | Marsden Bay | State | 4 | 244 |
| Onerahi Primary School | 1–6 | Onerahi | State | 4 | 430 |
| Otaika Valley School | 1–6 | Otaika | State | 4 | 117 |
| Pakotai School | 1–8 | Pakotai | State | 2 | 34 |
| Parua Bay School | 1–8 | Parua Bay | State | 9 | 217 |
| Pompallier Catholic College | 7–15 | Maunu | State integrated | 7 | 540 |
| Poroti School | 1–8 | Poroti | State | 6 | 23 |
| Portland School | 1–6 | Portland | State | 2 | 43 |
| Purua School | 1–8 | Purua | State | 5 | 19 |
| Raurimu Avenue School | 1–8 | Onerahi | State | 2 | 121 |
| Ruakaka School | 1–6 | Ruakaka | State | 4 | 163 |
| St Francis Xavier Catholic School | 1–6 | Whau Valley | State integrated | 6 | 502 |
| Tauraroa Area School | 1–15 | Tauraroa | State | 7 | 494 |
| Te Horo School | 1–8 | Pipiwai | State | 5 | 42 |
| Te Kura o Otangarei | 1–8 | Otangarei | State | 1 | 129 |
| Tikipunga High School | 7–15 | Tikipunga | State | 2 | 513 |
| Tikipunga Primary School | 1–6 | Tikipunga | State | 2 | 222 |
| Te Kura Kaupapa Maori o Te Rawhiti Roa | 1–15 | Tikipunga | State | 1 | 196 |
| Totara Grove School | 1–6 | Kamo | State | 2 | 301 |
| Waiotira School | 1–6 | Waiotira | State | 7 | 25 |
| Waipu School | 1–6 | Waipu | State | 7 | 230 |
| Whananaki School | 1–8 | Whananaki | State | 5 | 38 |
| Whangarei Adventist Christian School | 1–8 | Whau Valley | State integrated | 4 | 40 |
| Whangarei Boys' High School | 9–15 | Whangarei | State | 5 | 994 |
| Whangarei Girls' High School | 9–15 | Whangarei | State | 5 | 1171 |
| Whangarei Heads School | 1–8 | Whangarei Heads | State | 9 | 121 |
| Whangarei Intermediate | 7–8 | Whangarei | State | 4 | 621 |
| Whangarei School | 1–6 | Whangarei | State | 4 | 537 |
| Whangaruru School | 1–8 | Whangaruru | State | 1 | 47 |
| Whau Valley School | 1–6 | Whau Valley | State | 2 | 274 |
Question:
What is the roll number of Poroti school, which has a 6 decile?
Answer:
23.0