The visit figures are updated on the first working day of each month, and will be one month in arrears to allow time for the museums and galleries to collect the data.
The total visit figure refers to all visits to the museums and galleries, excluding corporate events.
Data collection methods vary between institutions, and each uses a method appropriate to its situation.
All data is collected according to the guidelines issued in 2000.
All museums and galleries are subject to seasonal fluctuations in the numbers of visits they receive. The general trend is for the visit numbers to be higher during school and half term holidays.
Some temporary exhibitions attract large numbers of visits and this will also have an impact on the monthly figures. There may also be occasions when all or part of a museum or gallery is closed for refurbishment, affecting the monthly total.
Figures may be subject to revision. Any amendments will be published on this website at the earliest opportunity.