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
