© The British Institute of Organ Studies 2017 (BIOS)

- Number of surveys, pictures and soundfiles delivered
- Number of searches performed on the NPOR, BOA and DBOB
- Number of surveys, buildings and places edited
- Number of surveys, photographs and audio files added

This graph shows the total number of organ specifications, pictures and audio files delivered to users during each month.

This graph shows the total number of searches of each type performed each month.

This graph gives a measure of the maintenance activity on the NPOR and shows the number of surveys, buildings and places which have been added or edited during each month. The number of surveys edited is derived from the number of times an existing survey has been replaced by an edited version. The numbers for buildings and places record the number of times the appropriate record was changed.

This graph gives additional information about maintenance activity and shows the number of new surveys, pictures and audio files added each month.

For 2016 statistics see here.

For 2015 statistics see here.

For 2014 statistics see here.

For 2013 statistics see here.

For 2012 statistics see here.

For 2011 statistics see here.

For 2010 statistics see here.

For 2009 statistics see here.

For 2008 statistics see here.

For 2007 statistics see here.

For 2005-6 statistics see here.