Between 2008 and 2009, the data was collated on a mid-year basis, from June to May, but from last year Wrap decided to return to presenting it on a calendar year basis.

2008年至2009年间，收集数据是按照半年制进行的，从六月到下一年五月，但是去年开始，Wrap决定回归到历年制。

youdao

Between 2008 and 2009, the data was collated on a mid-year basis, from June to May, but from last year Wrap decided to return to presenting it on a calendar year basis.

2008年至2009年间，收集数据是按照半年制进行的，从六月到下一年五月，但是去年开始，Wrap决定回归到历年制。

youdao