1.5 months
2.3 months
n/a
1.7 rounds
2.3 reports
difficult
3.5 months
6.2 months
n/a
3.0 rounds
2.0 reports
very easy
1.7 months
2.8 months
n/a
2.0 rounds
2.0 reports
moderate
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a