Category	Heard	PPB	Easy %	Medium %	Hard %
Current Events	57	19.30	98%	72%	23%
Fine Arts - Classical Music	136	13.97	90%	40%	10%
Fine Arts - Other	113	15.40	87%	57%	11%
Fine Arts - Painting and Sculpture	133	17.82	87%	68%	24%
Geography	52	15.58	89%	54%	14%
History - American	120	21.00	98%	70%	42%
History - European	135	18.67	96%	64%	27%
History - Other	132	17.35	96%	65%	13%
History - World	131	18.93	96%	65%	28%
Literature - American	132	16.59	92%	50%	24%
Literature - British	133	14.89	91%	42%	16%
Literature - European	132	15.45	92%	42%	21%
Literature - World	94	15.11	87%	50%	14%
Mythology	135	16.89	96%	52%	21%
Philosophy	95	14.74	90%	44%	14%
Popular Culture	64	20.94	97%	80%	33%
Religion	134	17.84	94%	61%	23%
Science - Biology	124	17.34	90%	60%	24%
Science - Chemistry	136	15.81	88%	49%	22%
Science - Other	122	16.97	91%	60%	19%
Science - Physics	127	15.12	85%	51%	15%
Social Science	93	16.24	94%	43%	26%