Numerous variables, such as the volume of transactions, block size, and data storage needs, affect the size of the Bitcoin blockchain database, which houses all transaction records, but it keeps growing as new transactions are added to the network. And also size is subjected to change and may have changed from my previous update.

Since efficiency varies depending on the situation, there are no certain tests that show the size of the Bitcoin database to be the most efficient. In contrast, Bitcoin's database size is frequently found to be more efficient than that of conventional banking systems when it comes to specific tasks like transaction processing and verification.

Creating and designing a simple website involves several steps. Here's a basic guide to get you started:
1. You will have to plan Your Website by determining the aim and objective of your website and make a rough sketch or layout to itemize and consider what content you want to use, include or exclude and how you want to organise or arrange it.
2. You will also have to choose a Website Builder, template and tool that you will use in creation of the website.
3. You must Select a Domain Name that can be memorable and relevant to the name of your website.
4.Choose a Host Provider If you're using a website builder otherwise, you'll need to choose a different hosting provider to store your website files.
5. To design your website you must use the tools provided by your chosen platform to customize the design of your website.
6. Add  your preferred website with contents including text, images, videos, and other media and also sure that your content is well-written, relevant, and engaging.
7. Optimise and Improve your website's visibility in search engines by optimizing your content for relevant keywords, adding meta tags, and ensuring your site to be a mobile free website.
8. Before launching your website, test it on different devices and browsers to ensure that it looks and functions correctly.
9. Once you're satisfied with your website, publish it for the world to see.
10. Promote your website by Sharing it on social media, include it in your email signature, and use other marketing tactics to drive traffic to your site.
 Once everything is done you can now freely use and recommend it to the work to see and use...