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:
| Capital | Prefecture | Region | Island | Pop. ¹ |
| --- | --- | --- | --- | --- |
| Akita | Akita | Tōhoku | Honshū | 327651.0 |
| Aomori | Aomori | Tōhoku | Honshū | 304657.0 |
| Chiba | Chiba | Kantō | Honshū | 943568.0 |
| Fukui | Fukui | Chūbu | Honshū | 268210.0 |
| Fukuoka | Fukuoka | Kyūshū | Kyūshū | 1434650.0 |
| Fukushima | Fukushima | Tōhoku | Honshū | 288602.0 |
| Gifu | Gifu | Chūbu | Honshū | 411753.0 |
| Hiroshima | Hiroshima | Chūgoku | Honshū | 1164885.0 |
| Kagoshima | Kagoshima | Kyūshū | Kyūshū | 604268.0 |
| Kanazawa | Ishikawa | Chūbu | Honshū | 455952.0 |
| Kobe Kobe | Hyōgo | Kansai | Honshū | 1532305.0 |
| Kochi Kōchi | Kochi Kōchi | Shikoku | Shikoku | 345418.0 |
| Kofu Kōfu | Yamanashi | Chūbu | Honshū | 198757.0 |
| Kumamoto | Kumamoto | Kyūshū | Kyūshū | 670014.0 |
| Kyoto | Kyoto | Kansai | Honshū | 1468065.0 |
| Maebashi | Gunma | Kantō | Honshū | 317167.0 |
| Matsue | Shimane | Chūgoku | Honshū | 195008.0 |
| Matsuyama | Ehime | Shikoku | Shikoku | 514771.0 |
| Mito | Ibaraki | Kantō | Honshū | 263299.0 |
| Miyazaki | Miyazaki | Kyūshū | Kyūshū | 368984.0 |
| Morioka | Iwate | Tōhoku | Honshū | 298959.0 |
| Nagano | Nagano | Chūbu | Honshū | 377328.0 |
| Nagasaki | Nagasaki | Kyūshū | Kyūshū | 446551.0 |
| Nagoya | Aichi | Chūbu | Honshū | 2243564.0 |
| Naha | Okinawa | Kyūshū | Ryūkyū Islands | 313436.0 |
| Nara | Nara | Kansai | Honshū | 366863.0 |
| Niigata | Niigata | Chūbu | Honshū | 811613.0 |
| Oita Ōita | Oita Ōita | Kyūshū | Kyūshū | 467617.0 |
| Okayama | Okayama | Chūgoku | Honshū | 700646.0 |
| Osaka | Osaka | Kansai | Honshū | 2649601.0 |
| Otsu Ōtsu | Shiga | Kansai | Honshū | 330044.0 |
| Saga | Saga | Kyūshū | Kyūshū | 239003.0 |
| Saitama | Saitama | Kantō | Honshū | 1197471.0 |
| Sapporo | Hokkaidō | Hokkaidō | Hokkaidō | 1896704.0 |
| Sendai | Miyagi | Tōhoku | Honshū | 1029576.0 |
| Shinjuku | Tokyo | Kantō | Honshū | 314262.0 |
| Shizuoka | Shizuoka | Chūbu | Honshū | 709888.0 |
| Takamatsu | Kagawa | Shikoku | Shikoku | 417671.0 |
| Tokushima | Tokushima | Shikoku | Shikoku | 265248.0 |
| Tottori | Tottori | Chūgoku | Honshū | 199319.0 |
| Toyama | Toyama | Chūbu | Honshū | 420584.0 |
| Tsu | Mie | Kansai | Honshū | 287849.0 |
| Utsunomiya | Tochigi | Kantō | Honshū | 508114.0 |
| Wakayama | Wakayama | Kansai | Honshū | 371504.0 |
| Yamagata | Yamagata | Tōhoku | Honshū | 254724.0 |
| Yamaguchi | Yamaguchi | Chūgoku | Honshū | 191714.0 |
| Yokohama | Kanagawa | Kantō | Honshū | 3643641.0 |
Question:
Name the average pop for chūgoku and prefecture of okayama
Answer:
700646.0