However, with the onset of the Second World War in 1939, the incidence of child employment appeared to show another spike- by 1944, this had increased again to 15.3 per cent of 12-14 year olds.
How do the child labour figures above compare to current global estimates?
Basu (1999) uses this source to produce global labour force participation rates for children (ages 10-14) in the period 1950-1995.
The following visualization presents the corresponding trend using the data published in Basu (1999).
, there is lack of consensus regarding the appropriate ages for measuring child labor, particularly for the purpose of cross-country comparisons and global aggregates.
The age bracket ranging from 5 to 17 years of age is common in many UN reports, but there is evidently a need to differentiate work at different ages, since children in their teenage years are less vulnerable to workplace abuse.
However, they do provide a rough sense of perspective.
As we can see, the incidence of child labour in England in 1900 was similar to global incidence a century later.
While these estimates are informative about child labour, they cannot be linked directly to those of children in employment published by the ILO IPEC for the period 2000-2012 due to issues of comparability; specifically, the IPEC and EPEAP estimates discussed above rely on different survey instruments covering a different set of countries, and break up the relevant population in different age brackets.
Many studies rely on the LABORSTA data to shed light on the extent of child labour in the 20th century.