Table formatting

Hi,

I have a problem that I cant find a solution to. Could one of you kind people help with this issue please?

Im trying to create a "table" in PHP to display a 3 column 6 row bit of data on my web page. the first, third, and fifth rows are a "heading" to describe what the data immediately below it is. Here is the code I have so far ...

<?php	

$result = mysqli_query($conn, "SELECT * FROM holiday_admin_bank_holiday
WHERE year=2021");

	echo "<table id='open'>";
		echo "<tr class='header'>";
			echo "<th>Year</td>";
			echo "<th>New Year</td>";
			echo "<th>Easter</td></tr>";
			echo "<th>Good Friday</td>";
			echo "<th>May Day</td>";
			echo "<th>Whitsun</td></tr>";
			echo "<th>August</td>";
			echo "<th>Christmas</td>";
			echo "<th>Boxing Day</td>";
		echo "</tr>";

	while($row = mysqli_fetch_array($result)) {

		echo "<tr>";
			echo "<td>".$row['year']."</td>";
			echo "<td>".$row['new_year']."</td>";
			echo "<td>".$row['easter']."</td></tr>";
			echo "<td>".$row['good_friday']."</td>";
			echo "<td>".$row['may_day']."</td>";
			echo "<td>".$row['whitsun']."</td></tr>";
			echo "<td>".$row['august']."</td>";
			echo "<td>".$row['christmas_day']."</td>";
			echo "<td>".$row['boxing_day']."</td>";
			
	}
?>

This gives a 3 column 6 row table with the headings on the first 3 rows and the data in the last 3 rows. Can anyone suggest a way of getting 1 row of heading, then 1 row of data, then 1 row of the next heading followed by the next row of data, and then the final 2 rows in the same way please?