0.9 months
1.4 months
n/a
2.0 rounds
2.0 reports
difficult
2.9 months
3.5 months
n/a
3.0 rounds
2.0 reports
very difficult
5.3 months
7.1 months
n/a
2.0 rounds
3.0 reports
difficult
3.1 months
3.7 months
n/a
3.0 rounds
2.0 reports
difficult
1.7 months
2.1 months
n/a
2.0 rounds
3.0 reports
moderate
5.5 months
9.7 months
n/a
2.0 rounds
2.0 reports
moderate
0.7 months
1.4 months
n/a
2.0 rounds
2.0 reports
very difficult