Description
1804: 1,000,000,000
1929: 2,000,000,000
1960: 3,000,000,000
1975: 4,000,000,000
1987: 5,000,000,000
1999: 6,000,000,000
2011: 7,000,000,000
2024: 8,000,000,000
2040: 9,000,000,000
2067: 10,000,000,000
2100: 21,000,000,000
3732: 100,000,000,000
13032: 1,000,000,000,000
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