Source: International Passenger Survey, Office for National Statistics

Notes:

1. Figures for 2017 and 2018 are provisional.
2. The shading around the central estimates represents the associated uncertainty of the estimates due to the number of people surveyed, based on 30%, 60% and 95% confidence intervals. The highlighted central estimate is the most likely value, whilst the values towards the upper and lower limit are possible but less likely. Other sources of uncertainty, for example due to limitations of the survey methodology, are not represented.

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