Table 4. The result of cross correlation of components of interest on the national forest trail by age (the public).

Age	19-29		30-39		40-49		50-59		60-64		65 older		Total
Interest	Freq.	%	Freq.	%	Freq.	%	Freq.	%	Freq.	%	Freq.	%	Freq.	%
Scenery	99	16.2	106	18.1	113	17.6	112	16.7	81	17.2	125	20.1	636	17.7
Healing Program	26	4.2	34	5.8	55	8.6	49	7.3	36	7.6	16	2.6	216	6.0
Wild flower	26	4.2	19	3.2	24	3.7	40	6.0	32	6.8	59	9.5	200	5.6
Mountain	21	3.4	19	3.2	36	5.6	28	4.2	21	4.5	67	10.8	192	5.3
Tree	27	4.4	25	4.3	27	4.2	34	5.1	30	6.4	47	7.6	190	5.3
Forest trail walking program	24	3.9	35	6.0	36	5.6	48	7.2	24	5.1	12	1.9	179	5.0
Travel time	33	5.4	45	7.7	35	5.5	36	5.4	22	4.7	10	1.6	181	5.0
Difficulty	41	6.7	32	5.5	28	4.4	20	3.0	10	2.1	16	2.6	147	4.1
Access way	26	4.2	26	4.4	23	3.6	24	3.6	20	4.2	5	0.8	124	3.4
History and culture related to forest trail	15	2.5	13	2.2	29	4.5	23	3.4	17	3.6	26	4.2	123	3.4
Web map	20	3.3	18	3.1	16	2.5	20	3.0	15	3.2	31	5.0	120	3.3
Tourist destination	34	5.6	19	3.2	18	2.8	11	1.6	9	1.9	21	3.4	112	3.1
Facility	13	2.1	8	1.4	19	3.0	15	2.2	14	3.0	24	3.9	93	2.6
Restaurant	19	3.1	15	2.6	11	1.7	18	2.7	9	1.9	22	3.5	94	2.6
Forest ecology program	18	2.9	12	2.1	13	2.0	21	3.1	13	2.8	12	1.9	89	2.5
Easy and clear sign	19	3.1	13	2.2	10	1.6	19	2.8	15	3.2	11	1.8	87	2.4
Car park	14	2.3	26	4.4	17	2.6	15	2.2	8	1.7	4	0.6	84	2.3
Strange rock formation	13	2.1	12	2.1	11	1.7	16	2.4	12	2.5	20	3.2	84	2.3
Forest meal	15	2.5	10	1.7	10	1.6	20	3.0	13	2.8	13	2.1	81	2.3
Type of use	9	1.5	14	2.4	20	3.1	18	2.7	12	2.5	4	0.6	77	2.1
Rare plant and animal	19	3.1	6	1.0	8	1.2	10	1.5	8	1.7	17	2.7	68	1.9
History and culture program	6	1.0	17	2.9	16	2.5	16	2.4	10	2.1	1	0.2	66	1.8
Trail map	9	1.5	11	1.9	18	2.8	12	1.8	11	2.3	5	0.8	66	1.8
Length of each section	14	2.3	8	1.4	14	2.2	8	1.2	3	0.6	7	1.1	54	1.5
Festival and event	12	2.0	10	1.7	7	1.1	6	0.9	6	1.3	14	2.3	55	1.5
Animal	22	3.6	7	1.2	7	1.1	4	0.6	3	0.6	12	1.9	55	1.5
Forest trail guide	3	0.5	8	1.4	6	0.9	11	1.6	10	2.1	6	1.0	44	1.2
Accommodation	8	1.3	11	1.9	8	1.2	10	1.5	4	0.8	2	0.3	43	1.2
History of forest trail development	3	0.5	3	0.5	4	0.6	4	0.6	2	0.4	12	1.9	28	0.8
COVID-19 regulation	4	0.7	3	0.5	3	0.5	1	0.1	1	0.2	0	0.0	12	0.3
Total	612	100	585	100	642	100	669	100	471	100	621	100	3600	100