The purchasing power of 100 yuan in different eras in China
1950s: 100 yuan ≈ 135 kilograms of pork
1960s: 100 yuan ≈ 125 kilograms of pork
1970s: 100 yuan ≈ 10 pairs of leather shoes
1980s: 100 yuan ≈ 1 month's living expenses
1990s: 100 yuan ≈ 20 kilograms of pork
2000s: 100 yuan ≈ one week's food expenses
2010s: 100 yuan ≈ 2 days' living expenses
2020s: 100 yuan ≈ 2-3 meals