private static Integer parseYearToTransformYear(String yearStr) {
    int year = Integer.parseInt(yearStr);
    return year - ICEBERG_EPOCH_YEAR;
  }
In the partition path years are represented naturally, e.g. 1984. However, we need
to convert it to an integer which represents the years from 1970. So, for 1984 the
return value should be 14.
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergFilterFactory.java