The proportion of inmates over the age of 65 has nearly tripled over the past decade, and they now make up close to 5 per cent of the prison population.  CHIAYI, Taiwan: At 88, he stands out in Chiayi Prison not for his crime, but for his age. Serving a one-year sentence for improper conduct, Mr Wu is the oldest inmate within its walls — and for him, the routines of prison life have become a daily struggle. “I lack strength. If I need to move around or do something, I need my fellow inmates to