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:
Medinah Country Club
Table title:
Major tournaments hosted
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Tournament </th><th colspan=1 rowspan=1 > Winner </th><th colspan=1 rowspan=1 > Margin of victory </th><th colspan=1 rowspan=1 > Winner's share ($) </th><th colspan=1 rowspan=1 > Par </th><th colspan=1 rowspan=1 > Course length </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1949 </td><td class="highlighted"  colspan=1 rowspan=1 > U.S. Open </td><td colspan=1 rowspan=1 > United States Cary Middlecoff </td><td colspan=1 rowspan=1 > 1 stroke </td><td colspan=1 rowspan=1 > 2,000 </td><td colspan=1 rowspan=1 > 71 </td><td colspan=1 rowspan=1 > 6,981 yd (6,383 m) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1975 </td><td class="highlighted"  colspan=1 rowspan=1 > U.S. Open </td><td colspan=1 rowspan=1 > United States Lou Graham </td><td colspan=1 rowspan=1 > 2 strokes (90) </td><td colspan=1 rowspan=1 > 40,000 </td><td colspan=1 rowspan=1 > 71 </td><td colspan=1 rowspan=1 > 7,032 yd (6,430 m) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > U.S. Senior Open </td><td colspan=1 rowspan=1 > South Africa Gary Player </td><td colspan=1 rowspan=1 > 2 strokes (90) </td><td colspan=1 rowspan=1 > 65,000 </td><td colspan=1 rowspan=1 > 72 </td><td colspan=1 rowspan=1 > 6,881 yd (6,292 m) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1990 </td><td class="highlighted"  colspan=1 rowspan=1 > U.S. Open </td><td colspan=1 rowspan=1 > United States Hale Irwin </td><td colspan=1 rowspan=1 > 1 stroke (91 holes) </td><td colspan=1 rowspan=1 > 220,000 </td><td colspan=1 rowspan=1 > 72 </td><td colspan=1 rowspan=1 > 7,195 yd (6,579 m) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1999 </td><td class="highlighted"  colspan=1 rowspan=1 > PGA Championship </td><td colspan=1 rowspan=1 > United States Tiger Woods </td><td colspan=1 rowspan=1 > 1 stroke </td><td colspan=1 rowspan=1 > 630,000 </td><td colspan=1 rowspan=1 > 72 </td><td colspan=1 rowspan=1 > 7,401 yd (6,767 m) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2006 </td><td class="highlighted"  colspan=1 rowspan=1 > PGA Championship </td><td colspan=1 rowspan=1 > United States Tiger Woods </td><td colspan=1 rowspan=1 > 5 strokes </td><td colspan=1 rowspan=1 > 1,224,000 </td><td colspan=1 rowspan=1 > 72 </td><td colspan=1 rowspan=1 > 7,561 yd (6,914 m) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2012 </td><td class="highlighted"  colspan=1 rowspan=1 > Ryder Cup United StatesEurope </td><td colspan=1 rowspan=1 > EuropeTeam Europe </td><td colspan=1 rowspan=1 > 1 point (14½–13½) </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 72 </td><td colspan=1 rowspan=1 > 7,657 yd (7,002 m) </td></tr>
</table>
Question:
Which kinds of championships did the Medinah Country Club host?
Answer:
Medinah hosted five major championships: three U.S. Opens (1949, 1975, 1990) and two PGA Championships (1999, 2006), as well as the Ryder Cup in 2012.