IncendiaryGunner
Master
Your graph only shows since 1900, that does not disprove anything. The rest of the article does not have much data from year to year.
The second article addresses that very critique, along with many many others that have been written since that one.
The data is publicly available.
http://scholar.google.com/scholar?q...a=X&ei=TBLSUK7-FMjxsgahrIHAAQ&ved=0CDQQgQMwAA