Smartphone ownership: Japan 4%, US 35%,Taiwan 50% says Ma

I saw a very surprising 2011 survey result from Ms Tae Matsumoto of Nara Women's University (奈良女子大學), as follows:


Thus, less than four out of 100 (or one out of twenty five) Nara Women's University students have smartphones.  Can the number be this low in a Japan university?

This 4% is in line with Global Smartphone Penetration by Region 2009-2014, but is a far cry from the 23% given in iPhone drives Japan smartphone penetration to over 20%.
 
For US numbers, see Pew research smartphone ownership.  They are 35% overall and 52% for young adults:

Smartphone penetration has reached more than half (52%) of 18-to-29-year-old US adults, according to a July 2011 study from the Pew Research Center Internet & American Life Project. The study also reveals that 45% of 30-to-49-year-olds own smartphones, and this figure then drops by almost 50% to 24% among 50-to-64-year-olds. Overall, 35% of US adults own smartphones.

The US numbers pale when compared to Taiwan's, according to president Ma Ying-Jeou:

"The smartphone penetration rate in Taiwan is expected to reach nearly 50% this year based on a similar figure in Hong Kong, where smartphones have become very popular," Ma told reporters at a press conference.

For people unfamiliar with Ma Yin-Jeou, he is a man constantly making unsubstantiated statements such as this, and making promises he could not keep (think 6-3-3). 

In Taiwan smartphone penetration set to hit record high: IDC, we read

Smartphone shipments in Taiwan, which accounted for between 21 percent and 22 percent of total mobile phone shipments last year, will increase to between 29 percent and 30 percent this year, higher than the global average of 26 percent, IDC senior analyst Joey Yen (嚴蘭欣) told reporters at a news conference.