Here's the same table sorted by hours for easier reading: hours count percent 0-4 7 3 5-20 14 5 20-30 11 4 30-40 42 16 40

Here's the same table sorted by hours for easier reading: hours count percent 0-4 7 3 5-20 14 5 20-30 11 4 30-40 42 16 40-50 66 25 50-60 52 20 60-70 35 13 70-80 16 6 80+ 21 8