
+--------+--------+------------+-------+
| w      | x      | y          | z     |
+========+========+============+=======+
| 143002 |   1.43 | 1972-09-08 | True  |
+--------+--------+------------+-------+
| 201399 | 201.4  | 1970-08-03 | True  |
+--------+--------+------------+-------+
| 100188 |   0.13 | 1970-11-06 | False |
+--------+--------+------------+-------+ 
