| millis | ppt | system:index | tmean | |
|---|---|---|---|---|
| 0 | 283996800000 | 116.820000 | 197901 | -2.430000 |
| 1 | 286675200000 | 231.960007 | 197902 | -1.215000 |
| 2 | 289094400000 | 197.570007 | 197903 | 1.610000 |
| 3 | 291772800000 | 22.930000 | 197904 | 4.810000 |
| 4 | 294364800000 | 44.139999 | 197905 | 10.320001 |
| ... | ... | ... | ... | ... |
| 487 | 1564617600000 | 0.000000 | 201908 | 20.301500 |
| 488 | 1567296000000 | 3.640000 | 201909 | 16.237499 |
| 489 | 1569888000000 | 0.000000 | 201910 | 11.337500 |
| 490 | 1572566400000 | 99.198997 | 201911 | 7.220000 |
| 491 | 1575158400000 | 142.615005 | 201912 | 1.924400 |
492 rows × 4 columns