Missing measurements using sample data from the official page

Hello, everyone. I’m new to database technology and influxdb. I’m trying to use the sample data from the official page. However, only the “h2o_feet” was imported to my database and the number of the points was 2033. I looked up in the official page and it should be much more. I don’t know what’s wrong with my process. I did all step by step as listed on the website.

My database:

SELECT COUNT(*) FROM h2o_feet
name: h2o_feet
time count_level description count_water_level


1970-01-01T00:00:00Z 2033 2033

show measurements
name: measurements
name


h2o_feet

Sample from the website:

SHOW measurements
name: measurements


name
average_temperature
h2o_feet
h2o_pH
h2o_quality
h2o_temperature

SELECT COUNT(“water_level”) FROM h2o_feet
name: h2o_feet


time count
1970-01-01T00:00:00Z 15258

Any suggestion would be helpful for me! Thank you.