Plinius

Monday, February 22, 2010

PL 6/10: Indicators based on KOSTRA

Filed under: statistics — plinius @ 12:53 pm

A small set of statistical data from all Norwegian public libraries are published by KOSTRA, a massive database on municipal statistics.

Turnover …

Many different indicators can be calculated from this information. I have proposed a set of twenty-six such indicators – and used KOSTRA to calculate the corresponding values for the years 2007 and 2008.

Advocacy

I think six of these indicators will be of particular interest to people outside the library field, such as managers and politicians in the municipal sector. These indicators are particularly relevant for advocacy.

A. Three output indicators

  1. visits per capita
  2. loans per capita
  3. level of activity, defined as the sum of visits and loans per capita

B. Two input indicators

  1. staff per 10.000 inhabitants
  2. operational costs, defined as the sum of media and salary expenses per capita

C. One productivity indicator

  1. level of productivity, defined as the ratio between the level of activity and the operational costs

The level of productivity can also be written as:

(no. of visits + no. of loans)/(media expenses+ salary expenses)

Internal indicators

The remaining twenty indicators are aimed at the library staff and hence more technical in nature:

D. Expenses (3)

  1. salary expenses per FTE
  2. media expenses per accession
  3. media expenses as a percentage of (salary + media) expenses

E. Turnover indicators (3)

  1. turnover of non-fiction = loans of non-fiction / stock of non-fiction
  2. turnover of fiction  = loans of fiction / stock of fiction
  3. turnover of children’s books = loans of children’s books / stock of children’s books

F. Output indicators (5)

  1. loans per visit
  2. loans of non-book media per inhabitant
  3. loans of non-fiction books per adult
  4. loans of fiction books per adult
  5. loans of children’s books per child

G. Other loan indicators (3)

  1. loans of non-book media as a percentage of all loans
  2. loans of non-fiction books as a percentage of all adult book loans
  3. loans of children’s books as a percentage of all book loans

H. Stock indicators (6)

  1. accessions per capita
  2. stock of non-fiction books per adult
  3. stock of fiction books per adult
  4. stock of children’s books per child
  5. stock of non-fiction books as a percentage of adult book stock
  6. stock of children’s books as a percentage of total book stock

Resources

The background is given in the paper:

The actual data can be found here

For more library data from Norway, see

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