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 Category 4 Atlantic hurricanes
Table title:
1976–2000
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=2 > Name </th><th colspan=1 rowspan=2 > Season </th><th colspan=1 rowspan=2 > Month </th><th colspan=3 rowspan=1 > Max. sustained winds </th><th colspan=2 rowspan=1 > Minimum pressure </th></tr>
<tr> <th colspan=1 rowspan=1 > (Knots) </th><th colspan=1 rowspan=1 > (km/h) </th><th colspan=1 rowspan=1 > (mph) </th><th colspan=1 rowspan=1 > (mbar) </th></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Ella </td><td colspan=1 rowspan=1 > 1978 </td><td colspan=1 rowspan=1 > August, September </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > 220 </td><td colspan=1 rowspan=1 > 140 </td><td colspan=1 rowspan=1 > 956 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Greta </td><td colspan=1 rowspan=1 > 1978 </td><td colspan=1 rowspan=1 > September </td><td colspan=1 rowspan=1 > 115 </td><td colspan=1 rowspan=1 > 215 </td><td colspan=1 rowspan=1 > 130 </td><td colspan=1 rowspan=1 > 947 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Frederic </td><td colspan=1 rowspan=1 > 1979 </td><td colspan=1 rowspan=1 > August, September </td><td colspan=1 rowspan=1 > 115 </td><td colspan=1 rowspan=1 > 215 </td><td colspan=1 rowspan=1 > 130 </td><td colspan=1 rowspan=1 > 943 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Harvey </td><td colspan=1 rowspan=1 > 1981 </td><td colspan=1 rowspan=1 > September </td><td colspan=1 rowspan=1 > 115 </td><td colspan=1 rowspan=1 > 215 </td><td colspan=1 rowspan=1 > 130 </td><td colspan=1 rowspan=1 > 946 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Debby </td><td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > September </td><td colspan=1 rowspan=1 > 115 </td><td colspan=1 rowspan=1 > 215 </td><td colspan=1 rowspan=1 > 130 </td><td colspan=1 rowspan=1 > 950 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Diana </td><td colspan=1 rowspan=1 > 1984 </td><td colspan=1 rowspan=1 > September </td><td colspan=1 rowspan=1 > 115 </td><td colspan=1 rowspan=1 > 215 </td><td colspan=1 rowspan=1 > 130 </td><td colspan=1 rowspan=1 > 949 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Gloria </td><td colspan=1 rowspan=1 > 1985 </td><td colspan=1 rowspan=1 > September, October </td><td colspan=1 rowspan=1 > 125 </td><td colspan=1 rowspan=1 > 230 </td><td colspan=1 rowspan=1 > 145 </td><td colspan=1 rowspan=1 > 919 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Helene </td><td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > September </td><td colspan=1 rowspan=1 > 125 </td><td colspan=1 rowspan=1 > 230 </td><td colspan=1 rowspan=1 > 145 </td><td colspan=1 rowspan=1 > 938 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Joan </td><td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > October, November </td><td colspan=1 rowspan=1 > 125 </td><td colspan=1 rowspan=1 > 230 </td><td colspan=1 rowspan=1 > 145 </td><td colspan=1 rowspan=1 > 932 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Gabrielle </td><td colspan=1 rowspan=1 > 1989 </td><td colspan=1 rowspan=1 > August, September </td><td colspan=1 rowspan=1 > 125 </td><td colspan=1 rowspan=1 > 230 </td><td colspan=1 rowspan=1 > 145 </td><td colspan=1 rowspan=1 > 935 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Claudette </td><td colspan=1 rowspan=1 > 1991 </td><td colspan=1 rowspan=1 > September </td><td colspan=1 rowspan=1 > 115 </td><td colspan=1 rowspan=1 > 215 </td><td colspan=1 rowspan=1 > 130 </td><td colspan=1 rowspan=1 > 943 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Felix </td><td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > August </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > 220 </td><td colspan=1 rowspan=1 > 140 </td><td colspan=1 rowspan=1 > 929 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Luis </td><td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > August, September </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > 220 </td><td colspan=1 rowspan=1 > 140 </td><td colspan=1 rowspan=1 > 935 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Opal </td><td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > September, October </td><td colspan=1 rowspan=1 > 130 </td><td colspan=1 rowspan=1 > 240 </td><td colspan=1 rowspan=1 > 150 </td><td colspan=1 rowspan=1 > 916 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Edouard </td><td colspan=1 rowspan=1 > 1996 </td><td colspan=1 rowspan=1 > August, September </td><td colspan=1 rowspan=1 > 125 </td><td colspan=1 rowspan=1 > 230 </td><td colspan=1 rowspan=1 > 145 </td><td colspan=1 rowspan=1 > 933 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Hortense </td><td colspan=1 rowspan=1 > 1996 </td><td colspan=1 rowspan=1 > September </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > 220 </td><td colspan=1 rowspan=1 > 140 </td><td colspan=1 rowspan=1 > 935 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Georges </td><td colspan=1 rowspan=1 > 1998 </td><td colspan=1 rowspan=1 > September, October </td><td colspan=1 rowspan=1 > 135 </td><td colspan=1 rowspan=1 > 250 </td><td colspan=1 rowspan=1 > 155 </td><td colspan=1 rowspan=1 > 937 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Hurricane Bret </td><td class="highlighted"  colspan=1 rowspan=1 > 1999 </td><td colspan=1 rowspan=1 > August </td><td colspan=1 rowspan=1 > 125 </td><td colspan=1 rowspan=1 > 230 </td><td colspan=1 rowspan=1 > 145 </td><td colspan=1 rowspan=1 > 944 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Hurricane Cindy </td><td class="highlighted"  colspan=1 rowspan=1 > 1999 </td><td colspan=1 rowspan=1 > August </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > 220 </td><td colspan=1 rowspan=1 > 140 </td><td colspan=1 rowspan=1 > 942 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Hurricane Floyd </td><td class="highlighted"  colspan=1 rowspan=1 > 1999 </td><td colspan=1 rowspan=1 > September </td><td colspan=1 rowspan=1 > 135 </td><td colspan=1 rowspan=1 > 250 </td><td colspan=1 rowspan=1 > 155 </td><td colspan=1 rowspan=1 > 921 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Hurricane Gert </td><td class="highlighted"  colspan=1 rowspan=1 > 1999 </td><td colspan=1 rowspan=1 > September </td><td colspan=1 rowspan=1 > 130 </td><td colspan=1 rowspan=1 > 240 </td><td colspan=1 rowspan=1 > 150 </td><td colspan=1 rowspan=1 > 930 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Hurricane Lenny </td><td class="highlighted"  colspan=1 rowspan=1 > 1999 </td><td colspan=1 rowspan=1 > November </td><td colspan=1 rowspan=1 > 135 </td><td colspan=1 rowspan=1 > 250 </td><td colspan=1 rowspan=1 > 155 </td><td colspan=1 rowspan=1 > 933 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Isaac </td><td colspan=1 rowspan=1 > 2000 </td><td colspan=1 rowspan=1 > September, October </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > 220 </td><td colspan=1 rowspan=1 > 140 </td><td colspan=1 rowspan=1 > 943 </td></tr>
<tr> <td colspan=1 rowspan=1 > Hurricane Keith </td><td colspan=1 rowspan=1 > 2000 </td><td colspan=1 rowspan=1 > September, October </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > 220 </td><td colspan=1 rowspan=1 > 140 </td><td colspan=1 rowspan=1 > 939 </td></tr>
<tr> <th colspan=8 rowspan=1 > Sources: Atlantic Hurricane Best Track File 1851–2012 </th></tr>
</table>
Question:
What season was the worst for Category 4 hurricanes and how many were there?
Answer:
The 1999 Atlantic hurricane season had five Category 4 hurricanes – the highest number recorded in a single season in the Atlantic basin.