training on data set with n = 17063
5 (19%):         average batch loss = 0.8703744434807051
10 (37%):        average batch loss = 0.6874526524729919
15 (56%):        average batch loss = 0.5815612148090619
20 (74%):        average batch loss = 0.4975119298777531
25 (93%):        average batch loss = 0.4389242791471073
training took 345.88809752464294s