The numbers within brackets are how many days in a row the flash has been within the top 15 flashes on the main list. A flash marked as "newcommer" has been within the top 15 flashes on the newcommer list sometime during this week. An "aged" flash might be anything from 1 to a million days old (it just means that it hasn't been on the newcommer list this week).
Flashes that has been on position 1-5 on the main list this week: