日本と海外をつなぐクラウドソーシング

I'm conducting in depth market research on female health products (tampons) in Japan. Their usage, biggest brands, purchasing trends, etc.

I'd like to find the answers to the following questions. All answers must include 1) Source of the data acquired and 2) Specific numbers/data to support answers. This will most likely require a native Japanese speaker as most of the information will be sourced in Japanese.

Here are a list of the questions I would like to answer. Please let me know if any of it is unclear!

1) How many women are there in Japan between the ages of 13 and 45?

2) Why are Japanese women more likely to use pads and not tampons? What is the perception of pads, tampons, and cup products in Tokyo (broken down by age range)?

3) How many tampons does the average woman in Japan use on a yearly basis? How much money do they spend on average?

4) What has been the biggest barrier to entry for companies producing tampons? Why have they not been successful?

5) How many women purchase menstrual products online vs. in physical stores in Tokyo?

6) Are there importing laws regarding female menstrual products in Japan?

7) Where and when does education and menstrual cycles occur in Japan. Through mothers? School? Friends?

8) What are all the alternatives to tampons in Japan (pads, cups, etc.)? Broken down by brand name, price, and links to their websites if possible.

9) What complimentary products to Japanese females buy around the same time of their purchase of menstrual products? (tea, chocolate, etc.?)