3.0 months
7.0 months
n/a
2.0 rounds
1.0 reports
difficult
2.5 months
2.7 months
n/a
2.0 rounds
2.0 reports
moderate
1.7 months
2.2 months
n/a
1.5 rounds
2.0 reports
very easy
4.4 months
5.3 months
n/a
2.3 rounds
1.8 reports
moderate