Table:
text: Ryukyuan missions to Edo
Missions Table
Ryūkyūan Missions to Edo
Year_ Mission_type Shogun Ryūkyūan_King Lead_Envoy Number_in_entourage
1748 Congratulation Tokugawa Ieshige Shō Kei Prince Gushikawa 98
1752 Gratitude Tokugawa Ieshige Shō Boku Prince Nakijin 94
1764 Congratulation Tokugawa Ieharu Shō Boku Prince Yomitanzan 96
1790 Congratulation Tokugawa Ienari Shō Boku Prince Ginowan 96
1796 Gratitude Tokugawa Ienari Shō On Prince Ōgimi 97
1806 Gratitude Tokugawa Ienari Shō Kō Prince Yomitanzan 97
1832 Gratitude Tokugawa Ienari Shō Iku Prince Tomigusuku 78
1842 Congratulation Tokugawa Ieyoshi Shō Iku Prince Urasoe 99
1850 Gratitude Tokugawa Ieyoshi Shō Tai Prince Tamakawa 99

text: Ryukyuan missions to Edo
Missions Table
Ryūkyūan Missions to Edo
Year_ Mission_type Shogun Ryūkyūan_King Lead_Envoy Number_in_entourage
1634 Congratulation & Gratitude Tokugawa Iemitsu Shō Hō Princes Tamagusuku, Kin, Sashiki Unknown
1644 Congratulation & Gratitude Tokugawa Iemitsu Shō Ken Princes Kin, Kunigami 70
1649 Gratitude Tokugawa Iemitsu Shō Shitsu Prince Gushikawa Chōei 63
1653 Congratulation Tokugawa Ietsuna Shō Shitsu Prince Kunigami 71
1671 Gratitude Tokugawa Ietsuna Shō Tei Prince Kin 74
1682 Congratulation Tokugawa Tsunayoshi Shō Tei Prince Nago 94
1710 Congratulation & Gratitude Tokugawa Ienobu Shō Eki Princes Miri, Tomigusuku 168
1714 Congratulation & Gratitude Tokugawa Ietsugu Shō Kei Princes Kin, Yonagusuku 170
1718 Congratulation Tokugawa Yoshimune Shō Kei Prince Goeku 94

Question: What is the last year of a 99 entourage gratitude mission for Ryukyuan missions to Edo?