Your details are lacking and what you have put up do not support your argument. The only statistic that would indicate the 'sensibility' of terms would be the length of sentences of those behind bars now compared to some other earlier time; not the fullness of the rooms. If beer dropped 66% in price, and twice as many people drunk 10% less, then less money would be spent on beer but the pubs would be fuller. Another way is that the sentences could be 33% less but 100% more people could be desperate enough to have to turn to crime to support themselves. Another useful measure could be the current rate of people appearing in court compared to earlier times and the length of the sentences they receive.
Maybe you should consider that the prisons are fuller for another reason than the stiffer sentences, that to everyone but you, are not being handed out?
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