Who were the immigrants?

graph - 
         see table below for data

Occupation of immigrants' fathers* (%)
Date Agriculture Builders Pre-industrial crafts Industrial White Collar
1841–52 34.6 9.1 17.4 4.2 15.9
1853–70 37.6 8.3 21.2 2.7 12.2
1871–80 31.2 8.9 22.1 5.4 6.5
1881–90 English 25.9 7.9 21.9 6.6 15.5
1901–10 English 14.4 10.4 27 8.6 11.1
1881–1915 Scots 27.2 8.9 24.5 9.8 7.4
1881–1915 Irish 65.2 3.9 7.2 2.8 5.5

*These figures are taken from the death certificates of British and Irish immigrants to New Zealand (which include information on the father's occupation). In other words, they indicate the family background of a migrant, but not necessarily their own occupation. The dates refer to the year the person migrated to New Zealand.

The figures and graph suggest: