Quran's statistics:

52% of the Quran is an expression of contempt against the infidels.17% of it deals with Allah.15% of the text deals with believers/non-believers.12% is about the day of judgment/day of doom.

And 4% of the verses are about the rights of other Muslims and good deeds (Haqooq-ul-ibad).

In Mecca an astounding 67% of the text is devoted to the infidel. In Medina 51% is about the infidel. The amount of text in the entire Koran devoted to infidels and non-believers is 61%."

When we compare the relative size of the Quran vis-à-vis Sira( Ibn Ishaq) we find that Allah is about 14% of the total sacred text. Sunna (Prophet Mohammed's words and deeds) on the other hand is 86% of the total.

In addition, the Koran does not contain enough information to practice even one of the Five Pillars of Islam. Five time prayer,2.5% of the income/assets to be given as zakat, the mode of keeping a fast, the modalities of Haj and Jehad. Even the Kalima is not there in the Quran.

Only the Sunna(primarily the Hadith for religious practice) tells the Muslim how to worship. So the statistical measure shows that Islam is primarily what Prophet Mohammad supposedly said and practiced.

It is also interesting to note that the hadis of “Bukhari” gives all of the tactical details of jihad. A simple counting method shows that 3% of the hadis are about the inner struggle, whereas, 97% of the hadis are about jihad as war.

So does jihad refer to the inner struggle? Yes, 3%.
Is jihad the war against infidels? Yes, 97%.