OVERSEAS TRADE AFTER 1890 99 and Melbourne were also available, and from these two series the construction of an effective wage index then became possible. The chief difficulty arose, however, in connexion with the adjust- ment of effective wages for unemployment, the real crux of the matter for our purpose. An estimate of unemployment for these years had, therefore, also to be made; and the method used was that of calculating the average of employment or, to use a shorter term, the norm. From the figures given by Coghlan it was calculated that, TasLe XVIII Percentage of Unemployment, New South Wales and Victoria N ler af employees in. factoriest Vitoria. ' N.S. Wales.| Total. (Dhousands.) 51-300 50-879 47-916 42-057 46-502 18-030 19-840 51-439 52:518 55-646 80-779 86-230 1890 1891 . 1892 . 1893 [894 1895 1896 1897 . 1898 . i899 . 1900 . . 1901 . Thousands.) 56,369 | 54413 15-415 41-729 13-319 17-646 50-397 32-650 54-778 60-070 84-207 36-529 * Pigure in brackets Commonwealth Bureau of Statistics estimate, Labour Report, No. 2. + Norm raised to correspond to growth of population. exclusive of aborigines, 5 per cent. of the population of New South Wales and Victoria was engaged in manufacture of some kind. This would give for the two colonies mentioned a norm of 113-63 thousands for 1891, when the population totalled 2,272,637. If a different line be pursued and calculations made for each state separately of the employment-in peak years, say 1886 for New South Wales and 1888 for Victoria, a norm of 56 for New South Wales and 58 for Victoria or a total of 114 is obtained. Since population was nearly stationary for the years between 1890 and 1897 these results are sufficiently close to 1 Statistical Registers of New South Wales and Victoria; and Coghlan, Statistical Account of Australia and New Zealand.