Complex sentence: However this changed in 1831, as this more categorisation was published shown to the left, although this occupational structure was limited to only males aged 20 and over, nevertheless numbers of male servants under 20, and of female servants, were also shown.
Split into simpler sentences: However this changed in 1831, as this more categorisation was published shown to the left, although this occupational structure was limited to only males aged 20 and over. Nevertheless numbers of male servants under 20, and of female servants, were also shown.