n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
8.8 months
12.2 months
n/a
1.7 rounds
1.8 reports
difficult
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
3.1 months
6.6 months
n/a
1.5 rounds
3.0 reports
very difficult
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
4.4 months
4.9 months
n/a
2.0 rounds
2.0 reports
difficult
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
13.0 months
13.1 months
n/a
n/a
1.0 reports
moderate