Type of library;Average number of weekly hours open to the public;Total Total;Total Libraries;6,636 Total;Up to 10;769 Total;Over 10 and up to 20;1,439 Total;Over 20 and up to 40;3,129 Total;More than 40;1,299 National;Total Libraries;1 National;Up to 10;. National;Over 10 and up to 20;. National;Over 20 and up to 40;. National;More than 40;1 Autonomous communities central Libraries;Total Libraries;7 Autonomous communities central Libraries;Up to 10;. Autonomous communities central Libraries;Over 10 and up to 20;. Autonomous communities central Libraries;Over 20 and up to 40;2 Autonomous communities central Libraries;More than 40;5 Public;Total Libraries;4,035 Public;Up to 10;440 Public;Over 10 and up to 20;1,153 Public;Over 20 and up to 40;1,724 Public;More than 40;718 For specific groups of users (non-specialised);Total Libraries;198 For specific groups of users (non-specialised);Up to 10;31 For specific groups of users (non-specialised);Over 10 and up to 20;34 For specific groups of users (non-specialised);Over 20 and up to 40;80 For specific groups of users (non-specialised);More than 40;53 Libraries in higher education institutions;Total Libraries;300 Libraries in higher education institutions;Up to 10;8 Libraries in higher education institutions;Over 10 and up to 20;10 Libraries in higher education institutions;Over 20 and up to 40;80 Libraries in higher education institutions;More than 40;202 Specialised Libraries: Total;Total Libraries;2,095 Specialised Libraries: Total;Up to 10;290 Specialised Libraries: Total;Over 10 and up to 20;242 Specialised Libraries: Total;Over 20 and up to 40;1,243 Specialised Libraries: Total;More than 40;320 Specialised Libraries: In religious institutions;Total Libraries;185 Specialised Libraries: In religious institutions;Up to 10;66 Specialised Libraries: In religious institutions;Over 10 and up to 20;43 Specialised Libraries: In religious institutions;Over 20 and up to 40;62 Specialised Libraries: In religious institutions;More than 40;14 Specialised Libraries: In the administration;Total Libraries;394 Specialised Libraries: In the administration;Up to 10;42 Specialised Libraries: In the administration;Over 10 and up to 20;30 Specialised Libraries: In the administration;Over 20 and up to 40;274 Specialised Libraries: In the administration;More than 40;48 Specialised Libraries: In research centres;Total Libraries;123 Specialised Libraries: In research centres;Up to 10;22 Specialised Libraries: In research centres;Over 10 and up to 20;11 Specialised Libraries: In research centres;Over 20 and up to 40;77 Specialised Libraries: In research centres;More than 40;13 Specialised Libraries: In professional associations and colleges;Total Libraries;267 Specialised Libraries: In professional associations and colleges;Up to 10;38 Specialised Libraries: In professional associations and colleges;Over 10 and up to 20;34 Specialised Libraries: In professional associations and colleges;Over 20 and up to 40;157 Specialised Libraries: In professional associations and colleges;More than 40;38 Specialised Libraries: In commercial companies or firms;Total Libraries;42 Specialised Libraries: In commercial companies or firms;Up to 10;7 Specialised Libraries: In commercial companies or firms;Over 10 and up to 20;. Specialised Libraries: In commercial companies or firms;Over 20 and up to 40;21 Specialised Libraries: In commercial companies or firms;More than 40;14 Specialised Libraries: In archives and museums;Total Libraries;356 Specialised Libraries: In archives and museums;Up to 10;33 Specialised Libraries: In archives and museums;Over 10 and up to 20;41 Specialised Libraries: In archives and museums;Over 20 and up to 40;237 Specialised Libraries: In archives and museums;More than 40;45 Specialised Libraries: In health centres;Total Libraries;138 Specialised Libraries: In health centres;Up to 10;8 Specialised Libraries: In health centres;Over 10 and up to 20;8 Specialised Libraries: In health centres;Over 20 and up to 40;72 Specialised Libraries: In health centres;More than 40;50 Specialised Libraries: Other specialised Libraries;Total Libraries;590 Specialised Libraries: Other specialised Libraries;Up to 10;74 Specialised Libraries: Other specialised Libraries;Over 10 and up to 20;75 Specialised Libraries: Other specialised Libraries;Over 20 and up to 40;343 Specialised Libraries: Other specialised Libraries;More than 40;98