Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
List of the busiest airports in New Zealand
Table title:
2018
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Rank </th><th colspan=1 rowspan=1 > Airport </th><th colspan=1 rowspan=1 > IATA </th><th colspan=1 rowspan=1 > Location </th><th colspan=1 rowspan=1 > Passengers </th></tr>
<tr> <td colspan=1 rowspan=1 > 1. </td><td class="highlighted"  colspan=1 rowspan=1 > Auckland International Airport </td><td colspan=1 rowspan=1 > AKL </td><td colspan=1 rowspan=1 > Auckland </td><td colspan=1 rowspan=1 > 20,530,048 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2. </td><td class="highlighted"  colspan=1 rowspan=1 > Christchurch International Airport </td><td colspan=1 rowspan=1 > CHC </td><td colspan=1 rowspan=1 > Christchurch </td><td colspan=1 rowspan=1 > 6,868,948 </td></tr>
<tr> <td colspan=1 rowspan=1 > 3. </td><td colspan=1 rowspan=1 > Wellington International Airport </td><td colspan=1 rowspan=1 > WLG </td><td colspan=1 rowspan=1 > Wellington </td><td colspan=1 rowspan=1 > 6,213,589 </td></tr>
<tr> <td colspan=1 rowspan=1 > 4. </td><td colspan=1 rowspan=1 > Queenstown International Airport </td><td colspan=1 rowspan=1 > ZQN </td><td colspan=1 rowspan=1 > Queenstown </td><td colspan=1 rowspan=1 > 2,140,669 </td></tr>
<tr> <td colspan=1 rowspan=1 > 5. </td><td colspan=1 rowspan=1 > Nelson Airport </td><td colspan=1 rowspan=1 > NSN </td><td colspan=1 rowspan=1 > Nelson </td><td colspan=1 rowspan=1 > 1,061,000 </td></tr>
<tr> <td colspan=1 rowspan=1 > 6. </td><td colspan=1 rowspan=1 > Dunedin International Airport </td><td colspan=1 rowspan=1 > DUD </td><td colspan=1 rowspan=1 > Dunedin </td><td colspan=1 rowspan=1 > 1,035,645 </td></tr>
<tr> <td colspan=1 rowspan=1 > 7. </td><td colspan=1 rowspan=1 > Hawkes Bay Airport </td><td colspan=1 rowspan=1 > NPE </td><td colspan=1 rowspan=1 > Napier </td><td colspan=1 rowspan=1 > 697,143 </td></tr>
<tr> <td colspan=1 rowspan=1 > 8. </td><td colspan=1 rowspan=1 > Palmerston North Airport </td><td colspan=1 rowspan=1 > PMR </td><td colspan=1 rowspan=1 > Palmerston North </td><td colspan=1 rowspan=1 > 675,867 </td></tr>
<tr> <td colspan=1 rowspan=1 > 9. </td><td colspan=1 rowspan=1 > New Plymouth Airport </td><td colspan=1 rowspan=1 > NPL </td><td colspan=1 rowspan=1 > New Plymouth </td><td colspan=1 rowspan=1 > 436,912 </td></tr>
<tr> <td colspan=1 rowspan=1 > 10. </td><td colspan=1 rowspan=1 > Tauranga Airport </td><td colspan=1 rowspan=1 > TRG </td><td colspan=1 rowspan=1 > Tauranga </td><td colspan=1 rowspan=1 > 405,000 </td></tr>
<tr> <td colspan=1 rowspan=1 > 11. </td><td colspan=1 rowspan=1 > Hamilton Airport </td><td colspan=1 rowspan=1 > HLZ </td><td colspan=1 rowspan=1 > Hamilton </td><td colspan=1 rowspan=1 > 353,000 </td></tr>
<tr> <td colspan=1 rowspan=1 > 12. </td><td colspan=1 rowspan=1 > Blenheim Airport </td><td colspan=1 rowspan=1 > BHE </td><td colspan=1 rowspan=1 > Blenheim </td><td colspan=1 rowspan=1 > 322,139 </td></tr>
<tr> <td colspan=1 rowspan=1 > 13. </td><td colspan=1 rowspan=1 > Invercargill Airport </td><td colspan=1 rowspan=1 > IVC </td><td colspan=1 rowspan=1 > Invercargill </td><td colspan=1 rowspan=1 > 307,308 </td></tr>
<tr> <td colspan=1 rowspan=1 > 14. </td><td colspan=1 rowspan=1 > Rotorua International Airport </td><td colspan=1 rowspan=1 > ROT </td><td colspan=1 rowspan=1 > Rotorua </td><td colspan=1 rowspan=1 > 246,846 </td></tr>
</table>
Question:
What are the first and second busiest airports in New Zealand?
Answer:
Christchurch International Airport is the second busiest airport in New Zealand after Auckland.