diff --git a/p8/data/aire.dat b/p8/data/aire.dat
new file mode 100644
index 0000000..03f920e
--- /dev/null
+++ b/p8/data/aire.dat
@@ -0,0 +1,8 @@
+80	20
+257	69
+302	79
+181	46
+140	36
+188	49
+44	11
+220	59
diff --git a/p8/data/ar.dat b/p8/data/ar.dat
new file mode 100644
index 0000000..9d9f06d
--- /dev/null
+++ b/p8/data/ar.dat
@@ -0,0 +1,12 @@
+138	44
+50	12
+106	32
+69	21
+86	25
+80	21
+41	6
+63	15
+128	39
+210	74
+156	51
+180	62
diff --git a/p8/data/co2.dat b/p8/data/co2.dat
new file mode 100644
index 0000000..6b7a22f
--- /dev/null
+++ b/p8/data/co2.dat
@@ -0,0 +1,10 @@
+48	10
+53	12
+68	15
+83	21
+109	25
+115	28
+142	35
+168	37
+182	42
+191	45