Question wording change: following experimentation conducted by YouGov USA (see details here), we introduced new question wording for our vaccine willingness question which has improved accuracy on the number of people saying they have taken the vaccine. The first date in which each territory began using the new wording can be found in the table below.
| Hong Kong | 7 Jun 2021 |
|---|---|
India | 4 Jul 2021 |
Indonesia | 7 Jun 2021 |
Malaysia | 7 Jun 2021 |
Philippines | 7 Jun 2021 |
Singapore | 4 Jun 2021 |
Taiwan | 7 Jun 2021 |
Thailand | 7 Jun 2021 |
Vietnam | 7 Jun 2021 |
Denmark | 7 Jun 2021 |
Finland | 3 Jun 2021 |
France | 3 Jun 2021 |
Germany | 4 Jun 2021 |
Italy | 4 Jun 2021 |
Norway | 7 Jun 2021 |
Spain | 6 Jun 2021 |
Sweden | 2 Jun 2021 |
UK | 2 Jun 2021 |
USA | 4 May 2021 |
Saudi Arabia | 31 May 2021 |
UAE | 31 May 2021 |
