| Year | Population > 64 years (projected) | Hip arthroplasty | Knee arthroplasty |
| 2010 | 40,229,000 | 467,995 | 751,224 | 2015 | 46,837,000 | 658,305 | 1,219,401 | 2020 | 54,804,000 | 887,755 | 1,783,863 | 2025 | 63,907,000 | 1,149,921 | 2,428,810 | 2030 | 72,092,000 | 1,385,649 | 3,008,718 | 2035 | 77,543,000 | 1,542,638 | 3,394,921 | 2040 | 81,238,000 | 1,649,054 | 3,656,712 | 2045 | 84,456,000 | 1,741,732 | 3,884,707 | 2050 | 88,547,000 | 1,859,553 | 4,174,554 |
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