diff --git a/mixnet/ordering/src/bin/aggregate.rs b/mixnet/ordering/src/bin/aggregate.rs
index 6cd5cc9..63bf11a 100644
--- a/mixnet/ordering/src/bin/aggregate.rs
+++ b/mixnet/ordering/src/bin/aggregate.rs
@@ -71,11 +71,11 @@ fn aggregate(path: &str) {
 
 fn add_stats_columns(df: &mut DataFrame, path: PathBuf, col_prefix: &str) {
     let mut schema = Schema::new();
-    schema.with_column("min".into(), DataType::UInt64);
+    schema.with_column("min".into(), DataType::Float64);
     schema.with_column("median".into(), DataType::Float64);
     schema.with_column("mean".into(), DataType::Float64);
     schema.with_column("std".into(), DataType::Float64);
-    schema.with_column("max".into(), DataType::UInt64);
+    schema.with_column("max".into(), DataType::Float64);
 
     let stats_df = CsvReadOptions::default()
         .with_has_header(true)
diff --git a/mixnet/ordering/src/bin/latency.rs b/mixnet/ordering/src/bin/latency.rs
index de51b4f..c78ae35 100644
--- a/mixnet/ordering/src/bin/latency.rs
+++ b/mixnet/ordering/src/bin/latency.rs
@@ -27,7 +27,7 @@ fn aggregate(path: &str) {
                     .extend(
                         &df.column("latency")
                             .unwrap()
-                            .i64()
+                            .f64()
                             .unwrap()
                             .clone()
                             .into_series(),
@@ -44,8 +44,8 @@ fn aggregate(path: &str) {
 }
 
 fn save_stats(aggregated: &Series, outpath: &str) {
-    let min = aggregated.min::<i64>().unwrap();
-    let max = aggregated.max::<i64>().unwrap();
+    let min = aggregated.min::<f64>().unwrap();
+    let max = aggregated.max::<f64>().unwrap();
     let mean = aggregated.mean().unwrap();
     let median = aggregated.median().unwrap();
     let std = aggregated.std(1).unwrap();