Section 08
Trends over the full period
Growth measured on the two dimensions the source data actually tracks through time: partnership agreements signed each year since 2011, and the founding of the institutions themselves since the 1830s. Each chart pairs the annual level with the year-over-year change.
37
Agreements signed
Across 2011–2023
+449%
Later vs earlier half
0.8 → 4.6 per year
11
Peak year
2023, the busiest on record
1970s
Busiest founding decade
6 institutions established
With 3-year trailing average
Bars are agreements signed in that year; the line is the cumulative total to date.
Agreements vs the previous year
Cumulative, by decade
Agreements signed, change and growth rate
| Year | Signed | Prior year | Change | Growth | Cumulative |
|---|---|---|---|---|---|
| 2011 | 1 | — | — | — | 1 |
| 2012 | 1 | 1 | 0 | 0% | 2 |
| 2013 | 0 | 1 | -1 | -100% | 2 |
| 2014 | 1 | 0 | +1 | — | 3 |
| 2015 | 1 | 1 | 0 | 0% | 4 |
| 2016 | 1 | 1 | 0 | 0% | 5 |
| 2017 | 1 | 1 | 0 | 0% | 6 |
| 2018 | 1 | 1 | 0 | 0% | 7 |
| 2019 | 4 | 1 | +3 | +300% | 11 |
| 2020 | 0 | 4 | -4 | -100% | 11 |
| 2021 | 5 | 0 | +5 | — | 16 |
| 2022 | 10 | 5 | +5 | +100% | 26 |
| 2023 | 11 | 10 | +1 | +10% | 37 |