[['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'], ['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']]
7 of the 18 Mission were for Gratitude only
7 of the 18 [ENT] were for [ENT] only