Income per person was by year 1999 roughly equal to the world average. According to the Andean Community, GDP per capita was US$1,487 in 1993, and rose to US$2,090 by 1995. The CIA's World Factbook estimates income per capita for 1999 at US$6,200.
The average surface temperature on Earth is approximately 14Â°C; but as already noted, this varies. For instance, the hottest temperature ever recorded on Earth was 70.7Â°C (159Â°F), which was taken in the Lut Desert of Iran.
Today's global temperature is typically measured by how it compares to one of these past long-term periods. For example, the average annual temperature for the globe between 1951 and 1980 was around 57.2 degrees Fahrenheit (14 degrees Celsius). In 2015, the hottest year on record, the temperature was about 1.8 degrees F (1 degree C) warmer than the 1951â1980 base period. That calculation comes from NASA and NOAA. Other agencies may come up with a slightly different number because there are several techniques for calculating a global average, depending on how one accounts for temperatures above the data-sparse oceans and other poorly sampled regions.