高速道路番号をz8から出す様に修正

[naogify]

Close #130

[netlify[bot]]

✅ Deploy Preview for style-gsi ready!

Name	Link
🔨 Latest commit	4d6fee010a5d6f2b0177c5ef8bf4c4b09447ba6a
🔍 Latest deploy log	https://app.netlify.com/sites/style-gsi/deploys/639bdb018a8e90000833cc93
😎 Deploy Preview	https://deploy-preview-134--style-gsi.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.

[github-actions[bot]]

✅ Style Rendering Time

Zoom	Difference in Means [sec.]	Mean ± Standard Deviation [sec.]	Mean ± Standard Deviation [sec.] (Production)	Significant Difference
5	+0.253	2.221 ± 0.719 (n = 5)	1.968 ± 0.099 (n = 5)	-
7	+0.32	3.204 ± 0.253 (n = 5)	2.884 ± 0.222 (n = 5)	-
11	-0.192	2.209 ± 0.326 (n = 5)	2.401 ± 0.287 (n = 5)	-
14	-0.274	2.173 ± 0.256 (n = 5)	2.447 ± 0.13 (n = 5)	-

n represents the number of samplings in each group.

The significant difference means the probability that the difference in means between the two groups is caused by coincidence due to sampling error, and 5% is used as the significance level.