{
  "fields": [{"id":"_id","type":"int"},{"id":"年次別月別","type":"text"},{"id":"入港船舶隻数（隻）","type":"numeric"},{"id":"入港船舶純屯数（ｔ）","type":"numeric"},{"id":"輸出額（千円）","type":"numeric"},{"id":"輸入額（千円）","type":"numeric"}],
  "records": [
    [1,"2017年",114,1218829,118003356,36749790],
    [2,"2018年",111,1252820,159348937,35912532],
    [3,"2019年",105,1273126,132482216,31058477],
    [4,"2020年",99,1213038,103166549,74285672],
    [5,"2021年",83,960648,30238728,104486233],
    [6,"2021年1月",9,138630,5765024,13707507],
    [7,"2021年2月",7,90595,5369580,12542399],
    [8,"2021年3月",9,87729,591452,11231149],
    [9,"2021年4月",8,78086,493677,7131405],
    [10,"2021年5月",5,66862,5729549,5269278],
    [11,"2021年6月",8,88891,713118,7744483],
    [12,"2021年7月",8,88019,5708077,9166975],
    [13,"2021年8月",7,57934,513937,7836312],
    [14,"2021年9月",4,62073,887692,6892457],
    [15,"2021年10月",8,85462,1075497,7164490],
    [16,"2021年11月",6,64427,712568,8042933],
    [17,"2021年12月",4,51940,2678557,7756845],
    [18,"",null,null,null,null],
    [19,"",null,null,null,null],
    [20,"",null,null,null,null],
    [21,"",null,null,null,null],
    [22,"",null,null,null,null],
    [23,"　",null,null,null,null]
]}