I just thought of an interesting 'game' we could play. Add up both the land areas of all the countries you've ever visited, as well as the combined populations, and see what the result is. Kind of random I know, I was thinking about population distribution, but I thought it might be interesting to compare.
If you wish to 'participate', these lists might make it easier:
List of countries and dependencies by area - Wikipedia, the free encyclopedia
List of countries by population - Wikipedia, the free encyclopedia
AREA in square kilometres
China: 9,706,961
United States: 9,161,930
Australia: 7,741,200
Thailand: 513,120
Vietnam: 331,212
Malaysia: 330,803
New Zealand: 270,467
Singapore: 710
TOTAL AREA: 28,056,403 km2
POPULATION
China: 1,347,350,000
United States: 314,296,000
Vietnam: 87,840,000
Thailand: 65,479,453
Malaysia: 29,466,000
Australia: 22,718,857
Singapore: 5,183,700
New Zealand: 4,440,600
TOTAL POPULATION: 1,876,774,610
Population as percentage of earth's total: 26.8%
Although I've only been to 8 countries, I've been to numerous provinces in China, every state/territory in Australia and 16 American states, which is the equivalent of countries in Europe. I've seen quite a lot of each country I've been to - not just one or two cities. Still, I don't consider myself well-travelled at all and hope to see as many places as I can before I kick it. Either way, I'm pretty thankful I've got the opportunity to travel to the places I have, as the majority of the world's population does not have that luxury.