ココロ・ボタン

Cover of ココロ・ボタン volume 1.

Stats

Vocabulary stats

Volume	Total Words	Unique	Used Once	% Used Once	New Unique	Vocabulary List
Series	8,270	2,356	1,344	56%		Vocabulary List
１	2,030	876	540	62%	876	Vocabulary List
２	2,198	1,017	667	66%	655	Vocabulary List
３	2,167	961	608	63%	485	Vocabulary List
４	1,875	863	582	67%	340	Vocabulary List

Kanji Tracking

Vocabulary coverage

If you learn the highest frequency words in this series or a specific volume, here is how many words you will need to learn for various amounts of coverage.

Series

Coverage	Required Words	%
75%	1,067	45%
80%	1,268	54%
85%	1,492	63%
90%	1,719	73%
95%	1,982	84%
96%	2,051	87%
97%	2,117	90%
98%	2,182	93%
99%	2,245	95%

１

Coverage	Required Words	%
75%	502	56%
80%	557	64%
85%	625	71%
90%	704	80%
95%	782	89%
96%	800	91%
97%	818	93%
98%	837	96%
99%	852	97%

２

Coverage	Required Words	%
75%	583	56%
80%	659	65%
85%	747	73%
90%	836	82%
95%	923	91%
96%	937	92%
97%	956	94%
98%	974	96%
99%	992	98%

３

Coverage	Required Words	%
75%	555	57%
80%	621	65%
85%	701	73%
90%	771	80%
95%	859	89%
96%	880	92%
97%	900	94%
98%	920	96%
99%	935	97%

４

Coverage	Required Words	%
75%	497	57%
80%	549	64%
85%	616	71%
90%	697	81%
95%	776	90%
96%	793	92%
97%	811	94%
98%	828	96%
99%	843	98%