Category	Heard	PPB	Easy %	Medium %	Hard %
Current Events	48	20.63	96%	81%	29%
Fine Arts - Classical Music	123	13.82	89%	37%	11%
Fine Arts - Other	114	15.53	93%	48%	14%
Fine Arts - Painting and Sculpture	119	18.49	86%	70%	29%
Geography	47	17.87	81%	70%	28%
History - American	112	19.02	98%	58%	34%
History - European	123	20.89	97%	79%	33%
History - Other	119	19.75	96%	74%	28%
History - World	117	21.03	96%	68%	46%
Literature - American	122	18.11	95%	59%	27%
Literature - British	123	18.05	95%	57%	29%
Literature - European	123	18.29	98%	57%	29%
Literature - World	98	17.04	90%	66%	14%
Mythology	123	16.91	99%	57%	13%
Philosophy	82	16.46	93%	62%	10%
Popular Culture	46	22.61	100%	78%	48%
Religion	120	18.83	94%	68%	26%
Science - Biology	113	16.73	89%	58%	20%
Science - Chemistry	123	15.12	87%	48%	16%
Science - Other	114	15.96	86%	57%	17%
Science - Physics	119	13.61	86%	40%	11%
Social Science	99	18.48	94%	67%	24%