Selecting From Website Dropdown Box

I'm attempting to familiarize myself with pulling data from an online database into spreadsheets for manipulation. I'm relatively familiar now with pulling tables using webquery, etc. but my next feat is accessing data from sites which require some "input" before retrieving the desired data set.

Currently, I have a site which contains information and prompts for the "year" of information in a dropdown box. I've attempted to do this as indicated below, and was able to "select" a year, however the page doesn't load the data like it would if I were to manually click on it.

Sub GetEmissionsData()
Dim ieApp As InternetExplorerDim ieDoc As ObjectSet ieApp = New InternetExplorer
ieApp.Visible = True

[Code] ........

Separately I've tried setting the year using another method, but this just give an error

Sub GetEmissionsData()
Dim ieApp As InternetExplorerDim ieDoc As ObjectSet ieApp = New InternetExplorer
ieApp.Visible = True

[Code] .......

I'm not sure if the error is due to some issue with my code - or if "Label1" isn't the correct label for the dropdown / combobox on the site. I didn't post the site source on this page - but the URL indicate in this post is the one I'm interested in.