I didn't find this kind of summary, so i made a list.......
There may be some mistakes for a freshman like me to do this...
Date Wks at No.1 Artist Title
2007 10 RIHANNA FEAT. JAY-Z UMBRELLA
2006 9 GNARLS BARKLEY CRAZY
2014 7 MARK RONSON FT BRUNO MARS UPTOWN FUNK
2007 7 LEONA LEWIS BLEEDING LOVE
2005 7 TONY CHRISTIE FEAT. PETER KAY (IS THIS THE WAY TO) AMARILLO
2011 6 RIHANNA FT CALVIN HARRIS WE FOUND LOVE
2003 6 BLACK EYED PEAS WHERE IS THE LOVE?
2013 5 ROBIN THICKE/TI/PHARRELL BLURRED LINES
2012 5 GOTYE FT KIMBRA SOMEBODY THAT I USED TO KNOW
2011 5 ADELE SOMEONE LIKE YOU
2008 5 BASSHUNTER FEAT. DJ MENTAL THEO'S BAZZHEADZ NOW YOU'RE GONE
2008 5 DUFFY MERCY
2008 5 KATY PERRY I KISSED A GIRL
2007 5 MIKA GRACE KELLY
2006 5 SHAKIRA FEAT. WYCLEF JEAN HIPS DON'T LIE
2005 5 JAMES BLUNT YOU'RE BEAUTIFUL
2015 4 ELLIE GOULDING LOVE ME LIKE YOU DO
2014 4 MEGHAN TRAINOR ALL ABOUT THAT BASS
2014 4 CLEAN BANDIT FT JESS GLYNNE RATHER BE
2013 4 DAFT PUNK FT PHARRELL WILLIAMS GET LUCKY
2012 4 CARLY RAE JEPSEN CALL ME MAYBE
2011 4 LMFAO/LAUREN BENNETT/GOONROCK PARTY ROCK ANTHEM
2009 4 LILY ALLEN THE FEAR
2008 4 ESTELLE FEAT. KANYE WEST AMERICAN BOY
2008 4 MADONNA AND JUSTIN TIMBERLAKE 4 MINUTES
2008 4 DIZZEE RASCAL FEAT. CALVIN HARRIS
AND CHROME DANCE WIV ME
2007 4 SEAN KINGSTON BEAUTIFUL GIRLS
2007 4 SUGABABES ABOUT YOU NOW
2006 4 SCISSOR SISTERS I DON'T FEEL LIKE DANCIN'
2006 4 TAKE THAT PATIENCE
2006 4 LEONA LEWIS A MOMENT LIKE THIS
2005 4 SHAYNE WARD THAT'S MY GOAL
2005 4 CRAZY FROG AXEL F
2004 4 EAMON F**K IT (I DON'T WANT YOU BACK)
2004 4 BAND AID 20 DO THEY KNOW IT'S CHRISTMAS?
2003 4 ROOM 5 FEAT. OLIVER CHEATHAM MAKE LUV
2003 4 R. KELLY IGNITION
2003 4 EVANESCENCE FEAT. PAUL MCCOY BRING ME TO LIFE
2003 4 BLU CANTRELL FEAT. SEAN PAUL BREATHE
2003 4 T.A.T.U. ALL THE THINGS SHE SAID
2002 4 ENRIQUE HERO
2002 4 GARETH GATES UNCHAINED MELODY
2002 4 GIRLS ALOUD SOUND OF THE UNDERGROUND
2002 4 ELVIS VS JXL A LITTLE LESS CONVERSATION
2001 4 ATOMIC KITTEN WHOLE AGAIN
2001 4 KYLIE MINOGUE CAN'T GET YOU OUT OF MY HEAD