Top 8 Economies are fixed as US, China, Japan, Germany, India, UK, France, Canada. Live birth data as recorded here: https://ourworldindata.org/grapher/crude-birth-rate?tab=chart&time=2016..2021&country=DEU~USA~GBR~CAN~FRA~CHN~IND~JPN (or going direct to the UN data OWID currently uses; World Bank is a third back up, but any change must happen within one data set).
Example: Canada's births per-1000 was at its lowest in 2019 at 9.74; if Canada's rate meets or exceeds 10.23 (9.74*1.05) in any year up to and including 2025, this market resolves yes. Only one of the countries needs to realize the increase, and it does not need to be sustained in following years (i.e. a one year spike to 10.25 in 2024, followed by a collapse to 9.69 in 2025 still resolves yes).
Current low points that count (these could change with further declines by 2024): US (10.94); China (7.63); Japan (6.57); Germany (9.14); India (16.42); UK (10.08); France (10.50); Canada (9.74).
1,000current lowest points:
Canada,2023,9.078
China,2023,6.256
France,2023,9.616
Germany,2023,8.507
India,2023,16.146
Japan,2023,6.029
United Kingdom,2023,10.023
United States,2023,10.648
Everywhere it is achieved in 2023 and they are significantly lower than stated in question.
@MattReardon please check the results and update the text.
the original file:
Entity,Code,Year,Birth rate - Sex: all - Age: all - Variant: estimates
Canada,CAN,2016,10.551
Canada,CAN,2017,10.266
Canada,CAN,2018,10.035
Canada,CAN,2019,9.855
Canada,CAN,2020,9.49
Canada,CAN,2021,9.616
Canada,CAN,2022,9.136
Canada,CAN,2023,9.078
China,CHN,2016,13.055
China,CHN,2017,12.929
China,CHN,2018,10.822
China,CHN,2019,10.267
China,CHN,2020,8.305
China,CHN,2021,7.334
China,CHN,2022,6.634
China,CHN,2023,6.256
France,FRA,2016,11.441
France,FRA,2017,11.099
France,FRA,2018,10.947
France,FRA,2019,10.826
France,FRA,2020,10.56
France,FRA,2021,10.627
France,FRA,2022,10.374
France,FRA,2023,9.616
Germany,DEU,2016,9.524
Germany,DEU,2017,9.439
Germany,DEU,2018,9.448
Germany,DEU,2019,9.32
Germany,DEU,2020,9.269
Germany,DEU,2021,9.507
Germany,DEU,2022,8.688
Germany,DEU,2023,8.507
India,IND,2016,18.756
India,IND,2017,17.995
India,IND,2018,17.91
India,IND,2019,17.368
India,IND,2020,16.744
India,IND,2021,16.491
India,IND,2022,16.336
India,IND,2023,16.146
Japan,JPN,2016,7.612
Japan,JPN,2017,7.378
Japan,JPN,2018,7.178
Japan,JPN,2019,6.825
Japan,JPN,2020,6.656
Japan,JPN,2021,6.45
Japan,JPN,2022,6.293
Japan,JPN,2023,6.029
United Kingdom,GBR,2016,11.777
United Kingdom,GBR,2017,11.411
United Kingdom,GBR,2018,10.982
United Kingdom,GBR,2019,10.645
United Kingdom,GBR,2020,10.204
United Kingdom,GBR,2021,10.241
United Kingdom,GBR,2022,10.1
United Kingdom,GBR,2023,10.023
United States,USA,2016,12.008
United States,USA,2017,11.657
United States,USA,2018,11.389
United States,USA,2019,11.169
United States,USA,2020,10.73
United States,USA,2021,10.822
United States,USA,2022,10.981
United States,USA,2023,10.648