| Year
| Summary
| Total spent
| Total initiatives
|
| California 2008 ballot measures | 3 elections, 15 initiatives, 4 referenda, 2 referrals | - | 325
|
| California 2006 ballot propositions | Californians defeat two measures in June; in November, 7 are approved, 8 defeated. | $369,829,153 | 310
|
| California 2005 ballot propositions | Eight measures on November ballot; all defeated. | $417,197,129 | 301
|
| California 2004 ballot propositions | Four measures on March ballot (3 win); 16 on November ballot (9 win). | $290,654,937 | 293
|
| California 2003 ballot propositions | Two statewide measures on October special election ballot; both lose. | $24,857,821 | 281
|
| California 2002 ballot propositions | Six measures on March ballot (5 win); seven propositions on November ballot (5 win) | - | 280
|
| California 2000 ballot propositions | Twenty measures on March ballot (12 win); eight propositions on November ballot (5 win) | - | 275
|
| California 1998 ballot propositions | - | -
|
| California 1996 ballot propositions | Twelve measures on March ballot (7 win); fifteen propositions on November ballot (8 win) | -
|
| California 1994 ballot propositions | - | -
|
| California 1922 ballot propositions | Ten initiatives; 4 are approved, 6 defeated. | - | 50
|
| California 1920 ballot propositions | Ten initiatives; 3 are approved, 7 defeated. | - | 40
|
| California 1918 ballot propositions | Six initiatives; 1 is approved, 5 defeated. | - | 30
|
| California 1916 ballot propositions | Four initiatives; 1 is approved, 3 defeated. | - | 24
|
| California 1914 ballot propositions | Seventeen initiatives; 6 pass, 11 are defeated. | - | 20
|
| California 1912 ballot propositions | Three initiatives; all are defeated. | - | 3
|
