{
  "fields": [{"id":"_id","type":"int"},{"id":"ปี","type":"numeric"},{"id":"ค่าสัมประสิทธิ์ (%)","type":"numeric"}],
  "records": [
    [1,2560,0.33],
    [2,2561,0.32],
    [3,2562,0.31],
    [4,2563,0.32],
    [5,2564,0.31],
    [6,2565,0.3],
    [7,2566,0.29]
]}