12.0 months
28.0 months
n/a
3.0 rounds
2.0 reports
very easy
14.0 months
16.0 months
n/a
2.0 rounds
2.0 reports
very difficult
1.2 months
3.1 months
n/a
3.0 rounds
3.0 reports
moderate
15.5 months
35.9 months
n/a
1.0 rounds
2.0 reports
difficult
3.4 months
3.4 months
n/a
1.0 rounds
2.0 reports
n/a