Fig. 2: Percentage change in the number of visits during 2020 in China.
From: Measuring Chinese mobility behaviour during COVID-19 using geotagged social media data

a–f Percentage change in visits across six categories of places. g Percentage change in visits to residential and non-residential places. Non-residential places include workplaces, retail and recreational sites, parks, transit stations, grocery stores and pharmacies. The temporal trend is the percentage change in visits compared to the baseline. The baseline represents a normal value for that day of the week and is the median value throughout the second half of 2019. The shaded area in grey highlights the one month after the national announcement of COVID-19 human-to-human transmission. Increases and decreases in percentage change are coloured in orange and blue, respectively. The red dotted line notes the announcements related to public health. The green-shaded area highlights public holidays.