Age-based queries

[ghing]

We're going with 5-year age buckets: [E.g. 18-24, 25-29, 30-34… 65, and over]

• Total convictions by age bucket.
• Each of our major categories by age bucket.
• homicide by age bucket.
• Each of our major categories by age year.

These are all in 18-24 bucket:

• Total # of convictions by sex
• per-capita # of 18-24 convictions by community area
• Might need to adjust for 18-24 pop rather than total pop

[ghing]

Implemented in 1db154a50190db648487464c7b775cf533b7e794