如何判断短语做定语还是状语

3 如何判断短语做定语还是状语

Data from the latest census, released on May 11th, showed that only 12m babies were born last year, a drop of almost 20% from 2019.

这是《经济学人》上的一句话，我的疑惑在于released on May 11th,如果去判断的话，它到底应该是做Data from the latest census showed that only 12 million babies were born last year这句话的定语还是状语呢？判断的标准是什么呢？

如果把句子的位置改变一下，是否判断的角度是否又会有变化呢？如下：

Released on May 11th,data from the latest census showed that only 12m babies were born last year, a drop of almost 20% from 2019.

(即把Released on May 11th提前)