The time series data contained in these tables has been extracted from –
- data published in departmental annual reports
- data published in statistical series of reports
- data contained in research reports
- Summary of keyword searches: all terms, WA, 1870 – 2010
- Grouped summary of keyword searches: individual related, WA, 1870 – 2010
- Grouped summary of keyword searches: industry related, WA, 1870 – 2010
- Summary of keyword searches: individual related, WA, 1870 – 2010
- Summary of keyword searches: Industry related, WA, 1870 – 2010
- Keyword searches: Individual related, WA, 1870 – 2010
- Keyword searches: Industry-related, WA, 1870 – 2010