年別,_id,男性,女性
100,1,31.36,40.2
101,2,26.91,35.16
102,3,27.89,36.3
103,4,27.84,36.05
104,5,27.04,34.73
105,6,25.84,33.98
106,7,25.41,33.29
107,8,25.36,32.98
108,9,25.07,32.55
109,10,24.33,31.21
110,11,23,29.3
111,12,…,…