Forecast
Forward projections from the prediction engine — baseline plus an optimistic/pessimistic band and a confidence interval, per macro indicator. These are PROJECTIONS, not observations: generated from observed history, never a guarantee. A country we hold no projections for is shown honestly.
Forecast
Need it as JSON? GET /api/v1/forecast/country/{iso3}.
Japan: forward projections across 12 macro indicators, horizons 2025, 2027, 2029, 2031, 2034, 2036. These are projections, not observations — each carries an optimistic/pessimistic band and a confidence interval, anchored against the latest observed value where one is held.
Latest observed3.8
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2027 | 3.99 | 6.18 | 1.8 | 3.48 – 4.5 |
| 2029 | 4.37 | 8.16 | 0.58 | 3.39 – 5.36 |
| 2031 | 4.75 | 9.65 | -0.14 | 3.37 – 6.13 |
| 2036 | 5.7 | 12.63 | -1.22 | 3.38 – 8.03 |
Method: linear_trend; lookback 8y; horizon 1y; confidence 80%
Latest observed22.77(2024)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2025 | 23.59 | 27.18 | 20.47 | 22.7 – 24.48 |
| 2027 | 25.22 | 31.45 | 19.83 | 23.12 – 27.33 |
| 2029 | 26.86 | 34.9 | 19.89 | 23.56 – 30.16 |
| 2034 | 30.95 | 42.33 | 21.1 | 24.38 – 37.53 |
Method: linear_trend; lookback 8y; horizon 1y; confidence 80%
Latest observed4T(2024)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2027 | 4.4T | 5.1T | 3.8T | 4.2T – 4.5T |
| 2029 | 4.4T | 5.6T | 3.4T | 4T – 4.7T |
| 2031 | 4.4T | 5.9T | 3.1T | 3.9T – 4.9T |
| 2036 | 4.4T | 6.5T | 2.5T | 3.4T – 5.4T |
Method: weighted_composite; lookback 8y; horizon 1y; confidence 80%
Latest observed0.1(2024)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2027 | 0.8 | 3.08 | -1.18 | 0.4 – 1.19 |
| 2029 | 0.94 | 4.89 | -2.49 | 0.23 – 1.64 |
| 2031 | 1.08 | 6.18 | -3.34 | 0.14 – 2.01 |
| 2036 | 1.43 | 8.64 | -4.82 | -0 – 2.86 |
Method: weighted_composite; lookback 6y; horizon 1y; confidence 80%
Latest observed32.5k(2024)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2027 | 35.9k | 41.4k | 31.2k | 34.7k – 37.1k |
| 2029 | 36.2k | 45.7k | 28k | 33.3k – 39.1k |
| 2031 | 36.5k | 48.7k | 25.9k | 32.1k – 40.9k |
| 2036 | 37.2k | 54.5k | 22.2k | 29.2k – 45.2k |
Method: weighted_composite; lookback 8y; horizon 1y; confidence 80%
Latest observed204.4(2026)· IMF DataMapper API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2027 | 204.71 | 221.16 | 185.74 | 198.37 – 211.06 |
| 2029 | 205.34 | 233.83 | 172.48 | 190.15 – 220.54 |
| 2031 | 205.97 | 242.74 | 163.55 | 182.59 – 229.36 |
| 2036 | 207.55 | 259.55 | 147.55 | 164.49 – 250.6 |
Method: linear_trend; lookback 10y; horizon 1y; confidence 80%
Latest observed23.64(2024)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2025 | 24.81 | 30.33 | 19.28 | 23.56 – 26.05 |
| 2027 | 27.14 | 36.71 | 17.57 | 24.37 – 29.91 |
| 2029 | 29.47 | 41.83 | 17.12 | 25.22 – 33.72 |
| 2034 | 35.31 | 52.79 | 17.83 | 26.98 – 43.63 |
Method: linear_trend; lookback 8y; horizon 1y; confidence 80%
Latest observed2.74(2024)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2027 | 1.76 | 4.39 | -1.05 | 1.15 – 2.37 |
| 2029 | 0.36 | 4.91 | -4.51 | -0.7 – 1.42 |
| 2031 | -1.04 | 4.83 | -5 | -2.42 – 0.34 |
| 2036 | -4.54 | 3.76 | -5 | -5 – -1.97 |
Method: exponential_smoothing; lookback 6y; horizon 1y; confidence 80%
Latest observed26.08(2024)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2025 | 26.2 | 27.58 | 25.01 | 25.39 – 27.01 |
| 2027 | 26.49 | 27.88 | 25.29 | 24.53 – 28.45 |
| 2029 | 26.78 | 28.19 | 25.57 | 23.74 – 29.83 |
| 2034 | 27.51 | 29.39 | 25.88 | 21.81 – 33.22 |
Method: weighted_composite; lookback 8y; horizon 1y; confidence 80%
Latest observed124m(2024)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2027 | 122.8m | 128.6m | 117.4m | 119m – 126.6m |
| 2029 | 122.1m | 127.9m | 116.8m | 113.1m – 131.2m |
| 2031 | 121.4m | 127.2m | 116.1m | 107.6m – 135.2m |
| 2036 | 119.7m | 125.3m | 114.4m | 94.9m – 144.5m |
Method: exponential_smoothing; lookback 10y; horizon 1y; confidence 80%
Latest observed-0.44(2024)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2025 | -0.73 | 5.94 | -5.73 | -1.58 – 0.12 |
| 2027 | -1.34 | 10.21 | -10 | -2.84 – 0.17 |
| 2029 | -1.94 | 12.97 | -10 | -3.96 – 0.08 |
| 2034 | -3.45 | 15 | -10 | -6.64 – -0.26 |
Method: weighted_composite; lookback 7y; horizon 1y; confidence 80%
Latest observed2.45(2025)· World Bank Indicators API
| Year | Baseline | Optimistic | Pessimistic | Conf. band |
|---|---|---|---|---|
| 2027 | 2.44 | 2.64 | 2.24 | 2.36 – 2.51 |
| 2029 | 2.32 | 2.6 | 2.04 | 2.15 – 2.49 |
| 2031 | 2.2 | 2.56 | 1.84 | 1.95 – 2.45 |
| 2036 | 1.89 | 2.4 | 1.38 | 1.5 – 2.28 |
Method: linear_trend; lookback 6y; horizon 1y; confidence 80%
Generated by the prediction engine (model prediction-engine-v1) on 2026-06-22 from observed history. Projections, not observations — never a guarantee of future values.
Machine-readable: GET /api/v1/forecast/country/JPN · Country page → · Full brief → · API docs
