year                mission type               shogun ryūkyūan king                          lead envoy number in entourage
0   1634  congratulation & gratitude     tokugawa iemitsu        shō hō  princes tamagusuku , kin , sashiki             unknown
1   1644  congratulation & gratitude     tokugawa iemitsu       shō ken              princes kin , kunigami                  70
2   1649                   gratitude     tokugawa iemitsu    shō shitsu              prince gushikawa chōei                  63
3   1653              congratulation     tokugawa ietsuna    shō shitsu                     prince kunigami                  71
4   1671                   gratitude     tokugawa ietsuna       shō tei                          prince kin                  74
5   1682              congratulation  tokugawa tsunayoshi       shō tei                         prince nago                  94
6   1710  congratulation & gratitude      tokugawa ienobu       shō eki           princes miri , tomigusuku                 168
7   1714  congratulation & gratitude     tokugawa ietsugu       shō kei            princes kin , yonagusuku                 170
8   1718              congratulation   tokugawa yoshimune       shō kei                        prince goeku                  94
9   1748              congratulation     tokugawa ieshige       shō kei                    prince gushikawa                  98
10  1752                   gratitude     tokugawa ieshige      shō boku                      prince nakijin                  94
11  1764              congratulation      tokugawa ieharu      shō boku                   prince yomitanzan                  96
12  1790              congratulation      tokugawa ienari      shō boku                      prince ginowan                  96
13  1796                   gratitude      tokugawa ienari        shō on                        prince ōgimi                  97
14  1806                   gratitude      tokugawa ienari        shō kō                   prince yomitanzan                  97
15  1832                   gratitude      tokugawa ienari       shō iku                   prince tomigusuku                  78
16  1842              congratulation     tokugawa ieyoshi       shō iku                       prince urasoe                  99
17  1850                   gratitude     tokugawa ieyoshi       shō tai                     prince tamakawa                  99

Table as JSON:
{"year":{"0":1634,"1":1644,"2":1649,"3":1653,"4":1671,"5":1682,"6":1710,"7":1714,"8":1718,"9":1748,"10":1752,"11":1764,"12":1790,"13":1796,"14":1806,"15":1832,"16":1842,"17":1850},"mission type":{"0":"congratulation & gratitude","1":"congratulation & gratitude","2":"gratitude","3":"congratulation","4":"gratitude","5":"congratulation","6":"congratulation & gratitude","7":"congratulation & gratitude","8":"congratulation","9":"congratulation","10":"gratitude","11":"congratulation","12":"congratulation","13":"gratitude","14":"gratitude","15":"gratitude","16":"congratulation","17":"gratitude"},"shogun":{"0":"tokugawa iemitsu","1":"tokugawa iemitsu","2":"tokugawa iemitsu","3":"tokugawa ietsuna","4":"tokugawa ietsuna","5":"tokugawa tsunayoshi","6":"tokugawa ienobu","7":"tokugawa ietsugu","8":"tokugawa yoshimune","9":"tokugawa ieshige","10":"tokugawa ieshige","11":"tokugawa ieharu","12":"tokugawa ienari","13":"tokugawa ienari","14":"tokugawa ienari","15":"tokugawa ienari","16":"tokugawa ieyoshi","17":"tokugawa ieyoshi"},"ryūkyūan king":{"0":"shō hō","1":"shō ken","2":"shō shitsu","3":"shō shitsu","4":"shō tei","5":"shō tei","6":"shō eki","7":"shō kei","8":"shō kei","9":"shō kei","10":"shō boku","11":"shō boku","12":"shō boku","13":"shō on","14":"shō kō","15":"shō iku","16":"shō iku","17":"shō tai"},"lead envoy":{"0":"princes tamagusuku , kin , sashiki","1":"princes kin , kunigami","2":"prince gushikawa chōei","3":"prince kunigami","4":"prince kin","5":"prince nago","6":"princes miri , tomigusuku","7":"princes kin , yonagusuku","8":"prince goeku","9":"prince gushikawa","10":"prince nakijin","11":"prince yomitanzan","12":"prince ginowan","13":"prince ōgimi","14":"prince yomitanzan","15":"prince tomigusuku","16":"prince urasoe","17":"prince tamakawa"},"number in entourage":{"0":"unknown","1":"70","2":"63","3":"71","4":"74","5":"94","6":"168","7":"170","8":"94","9":"98","10":"94","11":"96","12":"96","13":"97","14":"97","15":"78","16":"99","17":"99"}}