1.5 months
3.2 months
n/a
2.0 rounds
3.0 reports
difficult
1.3 months
4.2 months
n/a
2.0 rounds
2.0 reports
very difficult
2.1 months
4.1 months
n/a
3.0 rounds
2.0 reports
very difficult
1.3 months
2.1 months
n/a
2.0 rounds
2.0 reports
moderate
4.8 months
6.0 months
n/a
2.0 rounds
1.0 reports
moderate
1.0 months
1.5 months
n/a
2.0 rounds
2.0 reports
difficult
4.9 months
6.1 months
n/a
2.0 rounds
2.0 reports
difficult
0.4 months
1.4 months
n/a
2.0 rounds
2.0 reports
moderate
4.4 months
6.0 months
n/a
2.0 rounds
2.0 reports
very easy
30.4 months
32.5 months
n/a
2.0 rounds
2.0 reports
moderate
4.0 months
4.0 months
n/a
1.0 rounds
2.0 reports
n/a
3.0 months
3.0 months
n/a
1.0 rounds
3.0 reports
n/a
2.0 months
2.0 months
n/a
1.0 rounds
2.0 reports
n/a
16.0 months
16.5 months
n/a
2.0 rounds
3.0 reports
moderate