n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
0.7 months
1.3 months
n/a
2.3 rounds
2.3 reports
difficult
0.8 months
2.3 months
n/a
1.5 rounds
5.0 reports
difficult
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
0.9 months
1.2 months
n/a
2.0 rounds
2.0 reports
very easy
1.8 months
2.1 months
n/a
3.0 rounds
3.0 reports
moderate