Open Access
Table 2
Number of time series sizes and missing values.
| Time series type | Sample size | Number of missing values | Percentage of missing values |
|---|---|---|---|
| IL | 157248 | 0 | 0.00% |
| IU | 157248 | 0 | 0.00% |
| TEC Grad index | 157248 | 50512 | 32.12% |
| Ebro SEC | 157248 | 121567 | 77.30% |
| Sopron SEC | 157248 | 124444 | 79.13% |
| Dourbes SEC | 157248 | 111831 | 71.11% |
| Juliusruh SEC | 157248 | 119377 | 75.91% |
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