Category	Heard	PPB	Easy %	Medium %	Hard %
Current Events	15	18.00	100%	53%	27%
Fine Arts - Classical Music	97	19.59	95%	62%	39%
Fine Arts - Other Fine Arts	96	16.25	89%	50%	24%
Fine Arts - Painting and Sculpture	89	18.43	89%	63%	33%
Geography	18	17.22	100%	44%	28%
History - American History	85	16.47	94%	58%	13%
History - European History	84	18.93	94%	68%	27%
History - Other History	84	17.02	91%	66%	14%
History - World History	95	16.42	91%	57%	17%
Literature - American Literature	86	18.02	98%	59%	23%
Literature - British Literature	87	17.24	94%	61%	17%
Literature - European Literature	92	17.07	91%	55%	24%
Literature - World Literature	91	15.71	88%	53%	17%
Mythology	85	16.71	100%	48%	19%
Other Academic	30	15.33	100%	47%	7%
Philosophy	82	15.61	96%	46%	13%
Pop Culture	36	18.89	92%	64%	33%
Religion	91	16.26	95%	59%	9%
Science - Biology	89	14.72	89%	45%	14%
Science - Chemistry	92	16.74	95%	58%	15%
Science - Other Science	89	14.38	88%	44%	12%
Science - Physics	93	15.70	95%	51%	12%
Social Science	87	13.45	84%	43%	8%