Actually, this begins with the early 1990s, which I extended back a year to 1992, but don't have much useful content. However, I did finally adjust the site map to reflect the current pages, which have extended both backward and forward since the last update around March.
In the late 1990s, I added a nation for each year, and did some minor tweaks of the information from modern history.
For the early 2000s, the year-by year analysis has been updated to reflect events in India, Indonesia, Brazil, Pakistan, and Bangladesh. These are well worked over, but there is value in looking at the largest nations. I addded another quarter to 2004, and did some preliminary work in the quarters of 2005 getting ready to begin adding nations.