n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
2.0 months
2.7 months
n/a
2.0 rounds
2.4 reports
moderate
2.5 months
6.5 months
n/a
3.0 rounds
2.0 reports
difficult
5.9 months
7.9 months
n/a
2.0 rounds
3.0 reports
very easy
14.7 months
16.4 months
n/a
2.0 rounds
1.0 reports
moderate
1.5 months
1.9 months
n/a
2.0 rounds
3.0 reports
moderate
3.7 months
3.8 months
n/a
2.0 rounds
1.0 reports
moderate
2.0 months
4.0 months
n/a
2.0 rounds
3.0 reports
very easy
1.4 months
1.8 months
n/a
2.0 rounds
3.0 reports
moderate
2.7 months
3.2 months
n/a
2.0 rounds
4.0 reports
very difficult
0.5 months
0.6 months
n/a
2.0 rounds
3.0 reports
difficult
0.5 months
0.5 months
n/a
1.0 rounds
2.0 reports
n/a
5.1 months
5.1 months
n/a
2.0 rounds
2.0 reports
very difficult
6.9 months
12.1 months
n/a
2.0 rounds
3.0 reports
moderate
5.7 months
6.9 months
n/a
2.0 rounds
1.0 reports
very difficult