从查询集中的jsonfield中选择值

Question

class EMI(models.Model):
   emi = JSONField(default=dict)

json值

{"1": {"days": 1, "interest": 15, "penalty": 0.01, "amount": 32.0}, "2": {"days": 6, "interest": 6, "penalty": 0.01, "amount": 80.0}}

我想要金额中的值