diff --git a/coin_db.csv b/coin_db.csv
new file mode 100644
index 0000000000000000000000000000000000000000..3169358725bef810c307906895c00e6a9208111c
--- /dev/null
+++ b/coin_db.csv
@@ -0,0 +1,55 @@
+"price","rate","date"
+"41.71","0.49","2023-05-10 19:00:00"
+"41.65","0.3","2023-05-10 19:30:00"
+"41.8","0.04","2023-05-10 20:00:00"
+"41.82","0.38","2023-05-10 20:30:00"
+"42.78","3.04","2023-05-10 21:00:00"
+"43.05","3.4","2023-05-10 21:30:00"
+"42.92","3.84","2023-05-10 22:00:00"
+"43.06","4.48","2023-05-10 22:30:00"
+"42.78","3.25","2023-05-10 23:00:00"
+"42.55","2.89","2023-05-10 23:30:00"
+"price","rate","date"
+"0.178841","-1.8","2023-05-10 19:00:00"
+"0.178852","-1.45","2023-05-10 19:30:00"
+"0.178958","-1.82","2023-05-10 20:00:00"
+"0.179042","-1.94","2023-05-10 20:30:00"
+"0.182173","0.26","2023-05-10 21:00:00"
+"0.182896","0.62","2023-05-10 21:30:00"
+"0.18274","-0.19","2023-05-10 22:00:00"
+"0.182543","0.01","2023-05-10 22:30:00"
+"0.181699","0.3","2023-05-10 23:00:00"
+"0.180681","0.03","2023-05-10 23:30:00"
+"price","rate","date"
+"6.24","-2.44","2023-05-10 19:00:00"
+"6.24","-1.79","2023-05-10 19:30:00"
+"6.26","-2.22","2023-05-10 20:00:00"
+"6.24","-2.33","2023-05-10 20:30:00"
+"6.66","4.29","2023-05-10 21:00:00"
+"6.81","6.55","2023-05-10 21:30:00"
+"6.69","5.82","2023-05-10 22:00:00"
+"6.61","4.73","2023-05-10 22:30:00"
+"6.59","3.22","2023-05-10 23:00:00"
+"6.57","3.63","2023-05-10 23:30:00"
+"price","rate","date"
+"0.553322","0.41","2023-05-10 19:00:00"
+"0.554552","1.28","2023-05-10 19:30:00"
+"0.555359","1.03","2023-05-10 20:00:00"
+"0.555159","0.84","2023-05-10 20:30:00"
+"0.567998","3.24","2023-05-10 21:00:00"
+"0.57561","4.58","2023-05-10 21:30:00"
+"0.576309","4.94","2023-05-10 22:00:00"
+"0.579037","5.54","2023-05-10 22:30:00"
+"0.576918","5.18","2023-05-10 23:00:00"
+"0.572149","4.69","2023-05-10 23:30:00"
+"price","rate","date"
+"1.1","-0.26","2023-05-10 19:00:00"
+"1.1","0.11","2023-05-10 19:30:00"
+"1.1","-0.24","2023-05-10 20:00:00"
+"1.1","-0.18","2023-05-10 20:30:00"
+"1.12","1.37","2023-05-10 21:00:00"
+"1.12","2.27","2023-05-10 21:30:00"
+"1.13","3.22","2023-05-10 22:00:00"
+"1.13","3.96","2023-05-10 22:30:00"
+"1.13","3.75","2023-05-10 23:00:00"
+"1.13","3.42","2023-05-10 23:30:00"